Showing papers in "The Medical Journal of Australia in 2011"

Assessment and management of polycystic ovary syndrome: summary of an evidence-based guideline

Abstract: Helena J Teede, Marie L Misso, Amanda A Deeks, Lisa J Moran, Bronwyn G A Stuckey, Jennifer L A Wong, Robert J Norman and Michael F Costello on behalf of the Guideline Development Groups

Social determinants and the health of Indigenous Australians.

Abstract: Health is dependent on conditions that enable people to live lives they would choose to live.

Energy drinks: health risks and toxicity

Abstract: OBJECTIVES To describe the epidemiology and toxicity of caffeinated energy drink exposures in Australia. DESIGN, SETTING AND SUBJECTS Retrospective observational study analysing data from calls regarding energy drink exposures recorded in the database of an Australian poisons information centre over 7 years to 2010. MAIN OUTCOME MEASURES Type of exposure; co-ingestants; symptoms reported; and reported hospitalisations. RESULTS Callers reported 297 exposures to energy drinks, which showed an increasing annual trend from 12 in 2004 to 65 in 2010. Median age for the 217 subjects with recreational exposure was 17 years (interquartile ratio [IQR], 15-21; range, 11-60) and 57% were male. One hundred recreational users co-ingested other substances, predominantly alcohol (50) or other caffeinated products (44). The number of energy drinks consumed in one session varied greatly (median, 5 units; IQR, 3-8; range, 1-80). Most subjects who reported recreational use reported experiencing symptoms (87%). The most common symptoms were palpitations, agitation, tremor and gastrointestinal upset. Twenty-one subjects had signs of serious cardiac or neurological toxicity, including hallucinations, seizures, arrhythmias or cardiac ischaemia. At least 128 subjects (57 with no co-ingestants) required hospitalisation. CONCLUSIONS Reports of caffeine toxicity from energy drink consumption are increasing, particularly among adolescents, warranting review and regulation of the labelling and sale of these drinks. Educating adolescents and increasing the community's awareness of the hazards from energy drinks is of paramount importance.

A national census of medicines use: a 24-hour snapshot of Australians aged 50 years and older

Abstract: Objective To explore the current use of conventional and complementary medicines in Australians aged ≥ 50 years. Design, setting and participants Cross-sectional postal survey sent to a random sample of 4500 Australians aged ≥ 50 years between June 2009 and February 2010. Main outcome measures Prevalence of medicines use, reasons for medicines use and sources of medicines. Results Response rate was 37.3%. Medicines use was very common; 87.1% of participants took one or more medicines and 43.3% took five or more in the previous 24 hours. Complementary medicines were used by 46.3% of participants, 87.4% of whom used both conventional and complementary medicines. The most commonly used medicines were antihypertensive agents (43.2% of participants), natural marine and animal products including fish oil and glucosamine (32.4%) and lipid-lowering agents (30.4%). Doctors recommended 79.3% of all medicines and 93.0% of conventional medicines. Pharmacists commonly recommended occasional medicines (ie, as needed), while friends, family and media most often influenced use of complementary medicines. Conclusions The use of multiple medicines is common and higher than reported in the 1995 National Health Survey. Today, much medicines use is to prevent future disease by influencing risk factors. High levels of polypharmacy highlight the need to support the safe and effective use of medicines in the community. Although doctors recommend or prescribe most medicines, self-directed medication use is common. This highlights the need for consumer access to accurate information and strategies to improve health literacy about medicines.

Prescription of opioid analgesics and related harms in Australia.

Abstract: Objective: To document trends in: (i) prescribing of morphine and oxycodone; (ii) hospital separations for overdose; (iii) presentations for treatment of problems associated with these drugs; and (iv) oxycodone-related mortality data in Australia. Design and setting: Cross-sectional study analysing prescriptions for morphine and oxycodone based on figures adjusted using Australian Bureau of Statistics estimated resident population and prospectively collected data from: (i) the National Hospital Morbidity Database on hospital separations primarily attributed to poisoning with opioids other than heroin ("other opioids"); (ii) the Alcohol and Other Drug Treatment National Minimum Data Set for treatment episodes where morphine or oxycodone were the primary or other drugs of concern; (iii) the National Coronial Information System on deaths where oxycodone was the underlying cause of death or a contributory factor. Main outcome measures: Population-adjusted numbers of (i) prescriptions for morphine and oxycodone by 10-year age group, (ii) hospital separations for "other opioid" poisoning, and (iii) treatment episodes related to morphine or oxycodone; and (iv) number of oxycodone-related deaths. Results: Prescriptions for morphine declined, while those for oxycodone increased. Prescriptions for both were highest among older Australians. Hospital separations for "other opioid" poisoning doubled between the financial years 2005–06 and 2006–07. Treatment episodes for morphine remained stable, while those for oxycodone increased. There were 465 oxycodone-related deaths recorded during 2001–2009. Conclusions: Oxycodone prescriptions in Australia have increased, particularly among older Australians. The increase may, in part, reflect appropriate prescribing for pain among an ageing population. However we are unable to differentiate non-medical use from appropriate prescribing from this data. In comparison to heroin, the morbidity and mortality associated with oxycodone is relatively low in Australia. There is a continued need for comprehensive training of general practitioners in assessing patients with chronic non-malignant pain and prescribing of opioids for these patients, to minimise the potential for harms associated with use of these medications.

The challenges of population ageing: accelerating demand for emergency ambulance services by older patients, 1995-2015.

Abstract: Objective To measure the growth in emergency ambulance use across metropolitan Melbourne since 1995, to measure the impact of population growth and ageing on these services, and to forecast demand for these services in 2015. Design and setting A population-based retrospective analysis of Ambulance Victoria's metropolitan emergency ambulance transportation data for the period from financial year 1994-95 to 2007-08, and modelling of demand in the financial year 2014-15. Main outcome measures Numbers and rates of emergency ambulance transportations. Results The crude annual rate of emergency transportations across all age groups increased from 32 per 1000 people in 1994-95 to 58 per 1000 people in 2007-08. The rate of transportation for all ages increased by 75% (95% CI, 62%-89%) over the 14-year study period, representing an average annual growth rate of 4.8% (95% CI, 4.3%-5.3%) beyond that explained by demographic changes. Patients aged ≥ 85 years were eight times (incident rate ratio, 7.9 [95% CI, 7.6-8.3]) as likely to be transported than those aged 45-69 years over this period. Forecast models suggest that the number of transportations will increase by 46%-69% between 2007-08 and 2014-15, disproportionately driven by increasing usage by patients aged ≥ 85 years. Conclusions These findings confirm a dramatic rise in emergency transportations over the study period, beyond that expected from demographic changes. Rates increased across all age groups, but more so in older patients. In the future, such acceleration is likely to have major effects on ambulance services and acute hospital capacity. This calls for further investigation of underlying causes and alternative models of care.

The impact of potential new diagnostic criteria on the prevalence of gestational diabetes mellitus in Australia.

Abstract: OBJECTIVE The International Association of Diabetes and Pregnancy Study Groups (IADPSG) has proposed new criteria for the diagnosis of gestational diabetes mellitus (GDM). The aim of this study was to compare the prevalence of GDM when IADPSG criteria were used with the prevalence when the current Australasian Diabetes in Pregnancy Society (ADIPS) criteria were used. DESIGN, SETTING AND PARTICIPANTS This was a prospective study over a 6-month period, examining the results of all glucose tolerance tests (GTTs) conducted for the diagnosis of GDM in Wollongong, a city using the public and private sectors. MAIN OUTCOME MEASURES The prevalence of GDM using the existing (ADIPS) and the proposed (IADPSG) criteria. RESULTS There were 1275 evaluable GTTs (571 public and 704 private). Using the current ADIPS diagnostic criteria, the prevalence of GDM was 8.6% (public), 10.5% (private) and 9.6% (overall). Using the proposed IADPSG criteria, the prevalence of GDM was 9.1% (public), 16.2% (private) and 13.0% (overall). CONCLUSIONS The proposed IADPSG criteria would increase the prevalence of GDM from 9.6% to 13.0% (P < 0.001). In our study in the Wollongong area, which has a population with a predominantly white background, this increase came mainly from older women attending a private pathology provider. Data from both the public and private sectors need to be included in any discussion on the change in prevalence of GDM.

2011 update to National Heart Foundation of Australia and Cardiac Society of Australia and New Zealand Guidelines for the prevention, detection and management of chronic heart failure in Australia, 2006.

Abstract: Chronic heart failure (CHF) is a complex and lethal clinical syndrome accounting for an increasing number of Australian hospital separations and more than 2700 Australian deaths in 2008. In 2006, the National Heart Foundation of Australia and Cardiac Society of Australia and New Zealand published Guidelines for the prevention, detection and management of chronic heart failure in Australia, 2006. Results from recently published clinical trials provide additional information to be considered in the prevention, detection and management of CHF. In some cases, this new evidence strengthens recommendations previously made in the 2006 guidelines; in others, it provides new approaches to current recommended practice. Areas in which there have been significant new developments include: Use of B-type natriuretic peptide (BNP) or N-terminal proBNP plasma level measurement in guiding treatment of CHF; New pharmacological approaches to the treatment of systolic heart failure; Drugs to avoid or use with caution in CHF; Treatment of cardiac arrhythmias in patients with CHF; Multidisciplinary care and post-discharge management programs. While patient circumstances and clinical judgement should guide the interpretation of these findings in the clinical context, this update, together with the 2006 guidelines, provides current clinical guidance on CHF.

Hospital and emergency department use in the last year of life: a baseline for future modifications to end‐of‐life care

Abstract: Objectives To describe hospital and emergency department use in the last year of life by people for whom death from cancer or one of another nine conditions was an expected outcome. Design, participants and setting Retrospective cross-sectional study based on death registrations and morbidity data for 1071 Western Australians who died between 1 August 2005 and 30 June 2006. Decedents had an informal primary carer, did not live in residential aged care and died of a condition amenable to palliative care. Main outcome measures Total number of hospital admissions; emergency presentations (with and without hospital admission); days spent in hospital by age group at death, sex, metropolitan or rural place of residence and cancer versus non-cancer diagnosis; proportion in hospital on any day in the last 365 days of life; time points of change in the last 365 days of life at which there was an increasing proportion of hospital admissions for those with cancer and non-cancer conditions. Results All but 4% of the decedents spent time in hospital with a marked increase in hospitalisations in the last 108 days of life for people who died of cancer and the last 83 days of life for people who died of non-cancer conditions. Those with cancer spent less time in hospital than those with other diagnoses. Seventy per cent of the cohort had at least one emergency presentation. On the last day of life, 61.5% of people were in hospital and 4.0% had been seen in emergency departments. Conclusions Western Australian hospitals currently provide extensive and progressively greater care at the end of life. Identifying patterns of emergency and inpatient use for various disease trajectories will assist in the planning of appropriate services for people where death is an expected outcome.

Outcomes from the first 2 years of the Australian National Hand Hygiene Initiative.

Abstract: Objective: To report outcomes from the first 2 years of the National Hand Hygiene Initiative (NHHI), a hand hygiene (HH) culture-change program implemented in all Australian hospitals to improve health care workers’ HH compliance, increase use of alcohol-based hand rub and reduce the risk of health care-associated infections. Design and setting: The HH program was based on the World Health Organization 5 Moments for Hand Hygiene program, and included standardised educational materials and a regular audit system of HH compliance. The NHHI was implemented in January 2009. Main outcome measures: HH compliance and Staphylococcus aureus bacteraemia (SAB) incidence rates 2 years after NHHI implementation. Results: In late 2010, the overall national HH compliance rate in 521 hospitals was 68.3% (168 641/246 931 moments), but HH compliance before patient contact was 10%–15% lower than after patient contact. Among sites new to the 5 Moments audit tool, HH compliance improved from 43.6% (6431/14 740) at baseline to 67.8% (106 851/157 708) (P < 0.001). HH compliance was highest among nursing staff (73.6%; 116 851/158 732) and worst among medical staff (52.3%; 17 897/34 224) after 2 years. National incidence rates of methicillin-resistant SAB were stable for the 18 months before the NHHI (July 2007–2008; P = 0.366), but declined after implementation (2009–2010; P = 0.008). Annual national rates of hospital-onset SAB per 10 000 patient-days were 1.004 and 0.995 in 2009 and 2010, respectively, of which about 75% were due to methicillin-susceptible S. aureus. Conclusions: The NHHI was associated with widespread sustained improvements in HH compliance among Australian health care workers. Although specific linking of SAB rate changes to the NHHI was not possible, further declines in national SAB rates are expected.

Clinician-assisted computerised versus therapist-delivered treatment for depressive and addictive disorders: a randomised controlled trial

Abstract: OBJECTIVE To compare computer-delivered and therapist-delivered treatments for people with depression and comorbid addictive disorders. DESIGN Randomised controlled clinical trial. SETTING AND PARTICIPANTS Our study was conducted between January 2005 and August 2007 at seven study clinics in rural and urban New South Wales. Participants were 274 people who had a Beck Depression Inventory II (BDI-II) score ≥ 17 and were using alcohol and/or cannabis at harmful levels in the month before baseline. They were self-referred or referred from other sources such as outpatient drug treatment clinics, general practices and non-government support agencies. INTERVENTIONS Participants were randomly allocated to receive (1) integrated cognitive behaviour therapy and motivational interviewing (CBT/MI) delivered by a therapist; (2) integrated CBT/MI delivered by computer, with brief therapist assistance at the end of each session (clinician-assisted computerised [CAC] treatment), or (3) person-centred therapy (PCT), consisting of supportive counselling given by a therapist (the control group). All three treatments were delivered according to a manual developed specifically for the study. MAIN OUTCOME MEASURES Changes in depression, alcohol use and cannabis use at 3 months after baseline; significant predictors of change in the primary outcome variables. RESULTS Compared with computer- or therapist-delivered CBT/MI, PCT was associated with significantly less reduction in depression and alcohol consumption at 3 months. CAC therapy was associated with improvement at least equivalent to that achieved by therapist-delivered treatment, with superior results as far as reducing alcohol consumption. Change in depression was significantly predicted by change in alcohol use (in the same direction) and an ability to determine primacy, irrespective of whether this was for drug use or depression. Change in alcohol use was significantly predicted by changes in cannabis use and depression, and change in cannabis use by change in alcohol use. In the regression model, treatment allocation did not independently predict change, but was associated with significant reduction in depression and alcohol use at 3 months. CONCLUSIONS Over a 3-month period, CBT/MI was associated with a better treatment response than supportive counselling. CAC therapy was associated with greater reduction in alcohol use than therapist-delivered treatment. TRIAL REGISTRATION NUMBER ACTRN12610000274077.

Prevalence of polycystic ovary syndrome in a sample of Indigenous women in Darwin, Australia.

Abstract: Objective: To document the prevalence of polycystic ovary syndrome (PCOS) and its associated characteristics in a sample of urban Indigenous women Design: A cross-sectional survey of Indigenous women, including biochemical and anthropometric assessments PCOS was assessed using the National Institutes of Health 1990 criteria Setting and participants: Indigenous women, aged 15–44 years, living in a defined area in and around Darwin, Northern Territory, Australia, September 2003 – March 2005 Main outcome measures: Proportion of participants with PCOS overall and measures of obesity Results: Among 248 women eligible for assessment, the proportion who had PCOS was 153% (95% CI, 108%–198%) The proportion with PCOS was similar across age groups, but was significantly higher (P = 0001) in women with a body mass index (BMI) of ≥ 300 kg/m2 (305%) compared with women with a BMI of 250–299 kg/m2 (82%) or a BMI of Conclusions: A high proportion of these Indigenous women had PCOS The significant relationship with obesity gives a strong rationale for screening for PCOS during routine care of Indigenous women who are obese and of reproductive age

Cobalt toxicity - an emerging clinical problem in patients with metal-on-metal hip prostheses?

Abstract: We report two Australian patients with possible cobalt toxicity related to metal-on-metal total hip replacements. Both patients were treated for osteoarthritis with a DePuy ASR (articular surface replacement) XL Acetabular Hip System prosthesis, which contains cobalt and chromium, and which has recently been recalled from the market.

Racism as a determinant of social and emotional wellbeing for Aboriginal Australian youth

Abstract: Objective: To explore the associations between self-reported racism and health and wellbeing outcomes for young Aboriginal Australian people. Design, setting and participants: A cross-sectional study of 345 Aboriginal Australians aged 16–20 years who, as participants in the prospective Aboriginal Birth Cohort Study, were recruited at birth between 1987 and 1990 and followed up between 2006 and 2008. Main outcome measures: Self-reported social and emotional wellbeing using a questionnaire validated as culturally appropriate for the study’s participants; recorded body mass index and waist-to-hip ratio. Results: Self-reported racism was reported by 32% of study participants. Racism was significantly associated with anxiety (odds ratio [OR], 2.18 [95% CI, 1.37–3.46]); depression (OR, 2.16 [95% CI, 1.33–3.53]); suicide risk (OR, 2.32 [95% CI, 1.25–4.00]); and poor overall mental health (OR, 3.35 [95% CI, 2.04–5.51]). No significant associations were found between self-reported racism and resilience or any anthropometric measures. Conclusions: Self-reported racism was associated with poor social and emotional wellbeing outcomes, including anxiety, depression, suicide risk and poor overall mental

Urban-rural differences in prostate cancer outcomes in Australia: what has changed?

Abstract: Objective: To update our previous analysis of trends for prostate-specific antigen (PSA) testing, prostate cancer incidence, radical prostatectomy and prostate cancer mortality to assess whether men in rural and regional areas of Australia now have more equitable access to prostate cancer services, and improved outcomes. Design, setting and participants: Descriptive study using population-based data for Australian men aged 50–79 years from 1982 to the 2008–09 financial year (depending on data availability for each outcome measure). Main outcome measures: Age-standardised rates per 100 000 men and 5-year survival rates. Results: Overall, rates of PSA screening and radical prostatectomy increased, accompanied by reductions in mortality and improvements in survival throughout Australia. Incidence rates were similar for men in urban and rural areas. However, in the last year of data collection, for men in rural areas compared with urban areas, rates of PSA screening (21 267/100 000 v 24 606/100 000; P < 0.01) and radical prostatectomy (182.2/ 100 000 v 239.2/100 000; P < 0.01) remained lower, mortality remained higher (56.9/100 000 v 45.8/100 000; P < 0.01), and survival outcomes continued to be poorer (5-year relative survival, 87.7% v 91.4%; P < 0.01). Conclusions: With some limitations, these ecological data demonstrate that the use of diagnostic and treatment services among men living in rural areas of Australia remains lower than among their urban counterparts, their survival and mortality outcomes are poorer, and these differentials are continuing. There is an urgent need to explore further the reasons for

The effects of early paternal depression on children’s development

Abstract: OBJECTIVE: To examine the effects of paternal depression during children's first year on their wellbeing at 4-5 years of age using a large, representative sample of Australian families. DESIGN, SETTING AND PARTICIPANTS: Prospective study of Australian families from 2004 to 2008. Two-biological-parent families (n = 2620) from the Longitudinal Study of Australian Children were included if depression measures were available for both parents in 2004, behavioural and developmental measures were available for children in 2008, and the families had not separated by 2008. MAIN OUTCOME MEASURE: Child scores on the Strengths and Difficulties Questionnaire and on a set of Derived Outcome Indices, measured when the child was 4-5 years old. Logistic regression modelling was used to investigate how early paternal depression in 2004 influenced child outcomes 4 years later. RESULTS: Early paternal depression was a significant predictor of a range of poorer child outcomes (odds ratio [OR] for behavioural difficulties, 3.34 [95% CI, 3.06-3.65]; OR for a low development and wellbeing score, 2.70 [95% CI, 2.44-2.98]). These effects remained significant after controlling for both early maternal depression and later paternal depression (adjusted OR for behavioural difficulties, 1.93 [95% CI, 1.75-2.14]; OR for a low development and wellbeing score, 1.65 [95% CI, 1.48-1.85]). CONCLUSIONS: Depression in fathers during the first year of a child's life can have a detrimental impact on their child's behaviour, and social and emotional development at the point of school entry, in addition to and uniquely compared with depression in mothers. Early intervention to identify and address the mental health needs of fathers is required for the benefit of fathers, children and families. Language: en

Increasing incidence of malignant mesothelioma after exposure to asbestos during home maintenance and renovation

Abstract: OBJECTIVE To determine trends in incidence of malignant mesothelioma (MM) caused by exposure to asbestos during home maintenance and renovation. DESIGN, SETTING AND PARTICIPANTS Using the Western Australian Mesothelioma Register, we reviewed all cases of MM diagnosed in WA from 1960 to the end of 2008, and determined the primary source of exposure to asbestos. Categories of exposure were collapsed into seven groups: asbestos miners and millers from Wittenoom; all other asbestos workers; residents from Wittenoom; home maintenance/renovators; other people exposed but not through their occupation; and people with unknown asbestos exposure; or no known asbestos exposure. Latency periods and age at diagnosis for each group were calculated and compared. RESULTS In WA, 1631 people (1408 men, 223 women) were diagnosed with MM between 1960 and 2008. Since 1981, there have been 87 cases (55 in men) of MM attributed to asbestos exposure during home maintenance and renovation, and an increasing trend in such cases, in both men and women. In the last 4 years of the study (2005-2008), home renovators accounted for 8.4% of all men and 35.7% of all women diagnosed with MM. After controlling for sex and both year and age at diagnosis, the latency period for people exposed to asbestos during home renovation was significantly shorter than that for all other exposure groups, but the shorter follow-up and difficulty recalling when exposure first occurred in this group may partly explain this. CONCLUSIONS MM after exposure to asbestos during home renovation is an increasing problem in WA, and these cases seem to have a shorter latency period than other types of exposure. MM cases related to renovation will probably continue to increase because of the many homes that have contained, and still contain, asbestos building products.

Chronic suppurative lung disease and bronchiectasis in children and adults in Australia and New Zealand

Abstract: • Consensus recommendations for managing chronic suppurative lung disease (CSLD) and bronchiectasis, based on systematic reviews, were developed for Australian and New Zealand children and adults during a multidisciplinary workshop.

The prevalence and diagnosis rates of Klinefelter syndrome: an Australian comparison.

Abstract: Objective: To determine the prevalence and diagnosis rates of Klinefelter syndrome (KS) in Victoria, Australia, and compare these to previous international findings. Design, setting and participants: A Victorian population-based descriptive study of all cytogenetic examinations resulting in a diagnosis of KS, including prenatal diagnoses from 1986 to 2006 and postnatal diagnoses from 1991 to 2006. Main outcome measures: Birth prevalence and diagnosis rates of KS. Results: The birth prevalence of KS in Victoria is estimated to be 223 per 100 000 males (95% CI, 195–254), with about 50% of cases remaining undiagnosed. Conclusions: KS may be occurring more frequently than has been reported previously, yet many cases remain undiagnosed. Our results highlight the need for increased

Social media and the medical profession.

Abstract: Use of social media by doctors and medical students is common and growing. Although professional standards and codes of ethics that govern the behaviour of medical practitioners in Australia and New Zealand do not currently encompass social media, these codes need to evolve, because professional standards continue to apply in this setting. Inappropriate use of social media can result in harm to patients and the profession, including breaches of confidentiality, defamation of colleagues or employers, and violation of doctor-patient boundaries. The professional integrity of doctors and medical students can also be damaged through problematic interprofessional online relationships, and unintended exposure of personal information to the public, employers or universities. Doctors need to exercise extreme care in their use of social media to ensure they maintain professional standards.

Australian general practitioner chlamydia testing rates among young people

Abstract: Objective: To describe the proportion of 16–29-year-olds tested for chlamydia by Australian general practitioners in a 12-month period. Design and setting: Between October 2007 and September 2008, the national chlamydia testing rate in 16–29-year-olds was calculated by dividing the number of Medicare-reimbursed chlamydia tests by two denominators: (i) Medicare-reimbursed GP consultations; and (ii) estimated resident populations adjusted for the proportion who were sexually active. Main outcome measures: GP chlamydia testing rates in 16–29-year-olds per 100 patients attending a GP consultation and per 100 sexually active population, by patient age and sex, state/territory of residence, and remoteness area. Results: Among the estimated Australian population of 16–29-year-olds, 85.6% of females and 64.4% of males had at least one GP consultation in the 12-month period. The national GP chlamydia testing rate per 100 patients was 8.9% (95% CI, 8.88%–8.94%). The national GP chlamydia testing rate per 100 sexually active population was 8.0% (95% CI, 7.92%–7.98%). The rate per 100 sexually active population was higher in females (12.5%) compared with males (3.7%) (P < 0.01); higher in 20–24-year-olds (9.0%) compared with 16–19-year-olds (8.7%) and 25–29-year-olds (6.6%) (P < 0.01); higher in those living in non-metropolitan areas (11.0%) compared with metropolitan areas (8.4%) (P < 0.01); and highest in those living in the Northern Territory (21.4%) compared with other jurisdictions (P < 0.01). Conclusions: Despite clinical guidelines recommending annual chlamydia testing for sexually active 15–29-year-olds, our analysis showed that a high proportion of young people aged 16–29 years attend a GP each year, but few of the sexually active population in this age group were tested for chlamydia in general practice. Strategies are needed to support GPs to enhance chlamydia testing in young people.

Distance to the closest radiotherapy facility and survival after a diagnosis of rectal cancer in Queensland

Abstract: Free to read on journal website (may need to create free account first) We find ourselves in the curious position of criticising an article that supports improving access to radiotherapy. Baade and colleagues looked at cause-specific survival in all patients aged 20–79 years diagnosed with rectal cancer in Queensland.1 They found a 6% increase in cause-specific mortality risk for each 100 km increment in distance from the nearest radiotherapy facility. They concluded that the apparent poorer outcomes were due to a failure to receive radiotherapy.

Serum 25-hydroxyvitamin D and glycated haemoglobin levels in women with gestational diabetes mellitus.

Abstract: Objective: To test the hypothesis that lower 25-hydroxyvitamin D (25[OH]D) levels in late pregnancy are associated with poorer glucose control in gestational diabetes mellitus (GDM). Design and setting: Retrospective cross-sectional study, in a GDM clinic at a tertiary referral centre. Patients: Women attending the GDM clinic at Westmead Hospital from 1 February 2007 to 1 February 2008, excluding those with prepregnancy glucose intolerance. Main outcome measures: Levels of glycated haemoglobin (HbA1c) and 25(OH)D measured during the third trimester; maternal age, ethnicity, body mass index (BMI) and occupational status; and results of oral glucose tolerance testing (OGTT). Results: 147 women with a mean gestational age of 35 ± 2 weeks were included, of whom 41% had insufficient or deficient levels of 25(OH)D ( 50 nmol/L). Ethnicity, occupational status and season significantly influenced 25(OH)D levels (P < 0.01 for all) but BMI did not. 25(OH)D levels were inversely associated with fasting and 2-hour blood glucose levels during OGTT (Spearman r = − 0.16; P = 0.05 for both) and with log[HbA1c] (Spearman r = − 0.32; P < 0.001). BMI and insulin doses were also associated with HbA1c levels. Multivariable analysis identified 25(OH)D and blood glucose levels during the OGTT as independent predictors of HbA1c levels. Conclusions: Lower 25(OH)D levels are independently associated with poorer glycaemic control. Future randomised trials are needed to determine whether vitamin D plays a role in glycaemic control in GDM. Regardless, maternal vitamin D insufficiency has adverse effects including neonatal hypocalcaemia and rickets. The 41% prevalence of inadequate 25(OH)D levels in the women in our study is unacceptably high. We propose routine 25(OH)D testing of all pregnant women at screening for GDM or earlier,

First report of human anisakidosis in Australia.

Abstract: We present the first human case of anisakidosis acquired from eating locally caught fish in Australia. A 41-year-old woman experienced gastrointestinal pain, vomiting and diarrhoea of increasing severity over 3 weeks. All symptoms resolved spontaneously after a worm was passed in her faeces. Microscopic examination showed that it was a Contracaecum species larva of the family Anisakidae. Anisakidosis should be considered in patients with gastrointestinal symptoms who have recently eaten seafood.

Antibiotic resistance is an emerging threat to public health: an urgent call to action at the Antimicrobial Resistance Summit 2011

Abstract: A national interdisciplinary body is urgently needed to manage the looming antimicrobial resistance crisis.

Bone and metabolic health in patients with non-metastatic prostate cancer who are receiving androgen deprivation therapy.

Abstract: Androgen deprivation therapy (ADT) in men with prostate cancer increases the risk of osteoporotic fractures, type 2 diabetes and, possibly, cardiovascular events. There is considerable uncertainty about the risk-benefit ratio of ADT in non-palliative treatment; the benefits of ADT in treating non-metastatic prostate cancer need to be carefully weighed against the risks of ADT-induced adverse events. Baseline assessment of bone health at the initiation of ADT should include measurement of bone mineral density (BMD) by dual energy x-ray absorptiometry and, in men with osteopaenia, a thoracolumbar spine x-ray. General measures to prevent bone loss, including regular physical activity, as well as ensuring calcium and vitamin D sufficiency, should be instituted routinely. All men with a previous minimal trauma fracture should receive pharmacological therapy unless contraindicated; for those who have not sustained a minimal trauma fracture, treatment is advised if the BMD T score is ≤ - 2.0, or if the 10-year risk of a major osteoporotic fracture exceeds 20%. Men with prostate cancer who are receiving ADT should be closely monitored for weight gain and diabetes; intensive lifestyle intervention is recommended to prevent ADT-induced weight gain and insulin resistance. Management of the metabolic sequelae of ADT includes optimal reduction of cardiovascular risk factors, with particular attention to weight, blood pressure, lipid profile, smoking cessation, and glycaemic control.

Australasian Society for Infectious Diseases guidelines for the diagnosis and treatment of Clostridium difficile infection.

Abstract: Clostridium difficile is the most common cause of health care-associated and antibiotic-associated diarrhoea. These guidelines are intended to provide advice to clinicians on the clinical assessment, diagnosis and management of C. difficile infection (CDI). Hypervirulent strains of C. difficile, including PCR ribotype 027 strains recently identified in Australia, have been associated elsewhere with epidemic spread and high rates of severe disease and death. Diagnostic tests include stool culture, polymerase chain reaction-based assays, cell-culture cytotoxicity assays and enzyme immunoassays detecting C. difficile glutamate dehydrogenase, and/or toxin A and/or B. To treat an initial episode and a first recurrence, metronidazole is the preferred antibiotic, with oral vancomycin reserved for severe disease and subsequent recurrences. Surgery should be considered for fulminant disease.

Predictors of accuracy of diagnosis of chronic obstructive pulmonary disease in general practice.

Abstract: Objectives: To compare the clinical diagnosis of chronic obstructive pulmonary disease (COPD) with results of post-bronchodilator spirometry in general practice, and examine practitioner, practice and patient characteristics associated with agreement between clinical and spirometric diagnoses. Design, setting and participants: General practitioners from practices in Sydney identified eligible patients aged 40–80 years seen in the past year and prescribed respiratory medications whom they regarded as having COPD. Between November 2006 and April 2008, we collected information on the GPs and their practices, and demographic information, smoking status, comorbidities, respiratory medicines use, vaccination status, quality of life and spirometry results for participating patients. Main outcome measures: Frequency of COPD diagnosis on spirometry; odds ratios for characteristics associated with agreement between clinical and spirometric diagnoses. Results: 56 GPs from 44 practices participated in the study. Of 1144 eligible patients, 445 were recruited (mean age, 65 years; 49% male). Of these, 257 (57.8%) had postbronchodilator spirometry consistent with COPD ± asthma, 16 (3.6%) had asthma only, 82 (18.4%) had normal spirometry, and 90 (20.2%) had other spirometric diagnoses. Having a spirometer in the practice was not predictive of agreement between clinical and spirometric diagnoses. Older patient age was significantly associated with correct diagnosis, while higher numbers of comorbidities were associated with misdiagnosis. Conclusions: A substantial proportion of patients clinically identified as having COPD in general practice do not have the condition according to spirometric criteria, with inaccurate diagnosis more common in patients with comorbidities. Policy and practice