Soo Yang

Bio: Soo Yang is an academic researcher from Catholic University of Korea. The author has contributed to research in topics: Mental health & Nursing research. The author has an hindex of 10, co-authored 31 publications receiving 925 citations.

The smartphone addiction scale: development and validation of a short version for adolescents.

Abstract: Objective This study was designed to investigate the revised and short version of the smartphone addiction scale and the proof of its validity in adolescents. In addition, it suggested cutting off the values by gender in order to determine smartphone addiction and elaborate the characteristics of smartphone usage in adolescents. Method A set of questionnaires were provided to a total of 540 selected participants from April to May of 2013. The participants consisted of 343 boys and 197 girls, and their average age was 14.5 years old. The content validity was performed on a selection of shortened items, while an internal-consistency test was conducted for the verification of its reliability. The concurrent validity was confirmed using SAS, SAPS and KS-scale. Receiver operating characteristics analysis was conducted to suggest cut-off. Results The 10 final questions were selected using content validity. The internal consistency and concurrent validity of SAS were verified with a Cronbach's alpha of 0.911. The SAS-SV was significantly correlated with the SAS, SAPS and KS-scale. The SAS-SV scores of gender (p<.001) and self-evaluation of smartphone addiction (p<.001) showed significant difference. The ROC analysis results showed an area under a curve (AUC) value of 0.963(0.888–1.000), a cut-off value of 31, sensitivity value of 0.867 and specificity value of 0.893 in boys while an AUC value of 0.947(0.887–1.000), a cut-off value of 33, sensitivity value of 0.875, and a specificity value of 0.886 in girls. Conclusions The SAS-SV showed good reliability and validity for the assessment of smartphone addiction. The smartphone addiction scale short version, which was developed and validated in this study, could be used efficiently for the evaluation of smartphone addiction in community and research areas.

Trends in Nursing Research in Korea: Research Trends for Studies Published from the Inaugural Issue to 2010 in the Journal of Korean Academy of Nursing and the Journals Published by Member Societies under Korean Academy of Nursing Science

Abstract: Purpose: The purpose of this study was to identify trends for studies published in the Journal of Korean Academy of Nursing and journals published by member societies from inaugural issues to 2010. Methods: A total of 6890 studies were analyzed using descriptive statistics. Results: Quantitative studies accounted for 83.6% while qualitative studies accounted for 14.4%. Most frequently used research designs were quasi-experimental (91.1%) for experimental research and survey (85.2%) for non-experimental research. Most frequent study participants were healthy people (35.8%), most frequent nursing interventions, nursing skills (53.5%), and 39.8% used knowledge, attitude and behavior outcomes for dependent variables. Most frequently used keyword was elderly. Survey studies decreased from 1991 to 2010 by approximately 50%, while qualitative studies increased by about 20%. True experimental research (1.2%) showed no significant changes. Studies focusing on healthy populations increased from 2001-2005 (37.5%) to 2006-2010 (41.0%). From 1970 to 2010, studies using questionnaire accounted for over 50% whereas physiological measurement, approximately 5% only. Experimental studies using nursing skill interventions increased from 1970-1980 (30.4%) to 2006-2010 (64.0%). No significant changes were noted in studies using knowledge, attitude and behavior (39.9%) as dependent variables. Conclusion: The results suggest that further expansion of true experimental, qualitative studies and physiological measurements are needed.

Association study between glutathione S-transferase P1 polymorphism and schizophrenia in the Korean population.

Abstract: This study is aimed to test the association between the coding sequence functional polymorphism (Ile105Val) of glutathione S-transferase P gene (GSTP1) and schizophrenia in the Korean population. Two hundred fourteen patients with schizophrenia according to the Diagnostic and Statistical Manual of Mental Disorders-IV (DSM-IV) criteria and 110 healthy controls were enrolled in this study. Patients and controls were biologically unrelated age and sex-matched native Koreans. Genotyping for GSTP1 polymorphism was performed by polymerase chain reaction (PCR)-restriction fragment length polymorphism (RFLP). Genotype and allele distributions of GSTP1 polymorphism in patients with schizophrenia were not significantly different from those of the controls. Comparisons of clinical variables including Positive and Negative Syndrome Scale (PANSS), change of Brief Psychiatric Rating Scale (BPRS), number of admission, and onset age also were not different according to genotype distribution. The present study suggests that GSTP1 polymorphism may not confer susceptibility to development of schizophrenia in the Korean population.

Effects of Listening to Music on Auditory Hallucination and Psychiatric Symptoms in People with Schizophrenia

Abstract: Purpose: The purpose of this study was to explore the effects of listening to music in inpatients diagnosed with schizophrenia, on their auditory hallucinations, and positive and negative symptoms. Methods: A quasi-experimental research design with 2×2 cross-over trial and convenience sample was used. Eleven patients (Group AB) listened to music followed by a wash out period and then a usual care period, and 12 patients (Group BA) had a usual care period followed by a wash out period and then listened to music. For one week those who were in the experimental period listened to individualized music using an MP3 player whenever they heard hallucinations. Results: There was a statistically significant decrease in the frequency of auditory hallucinations after listening to the music. There was a decrease in the mean scores for positive symptoms, negative symptoms, and general psychopathology after listening to music, but only negative symptoms showed a statistically significant decrease. The treatment effects on scores for positive symptoms, negative symptoms, and general psychopathology were greater in Group BA than Group AB. Conclusion: These findings suggest that listening to music may be useful for managing auditory hallucinations in schizophrenia inpatients.

Relationship of smartphone use severity with sleep quality, depression, and anxiety in university students.

Abstract: Background and aims The usage of smartphones has increased rapidly in recent years, and this has brought about addiction. The aim of the current study was to investigate the relationship between smartphone use severity and sleep quality, depression, and anxiety in university students. Methods In total, 319 university students (203 females and 116 males; mean age = 20.5 ± 2.45) were included in the study. Participants were divided into the following three groups: a smartphone non-user group (n = 71, 22.3%), a low smartphone use group (n = 121, 37.9%), and a high smartphone use group (n = 127, 39.8%). All participants were evaluated using the Pittsburgh Sleep Quality Index, Beck Depression Inventory, Beck Anxiety Inventory; moreover, participants other than those in the smartphone non-user group were also assessed with the Smartphone Addiction Scale. Results The findings revealed that the Smartphone Addiction Scale scores of females were significantly higher than those of males. Depression, anxiety, and day...

Organization for Economic Cooperation and Development (OECD)

Abstract: This article is a revision of the previous edition article by Robert Visser, volume 4, pp 551–560, © 2005, Elsevier Inc.

Clinical pathways: effects on professional practice, patient outcomes, length of stay and hospital costs

Abstract: Background Clinical pathways are structured multidisciplinary care plans used by health services to detail essential steps in the care of patients with a specific clinical problem. They aim to link evidence to practice and optimise clinical outcomes whilst maximising clinical efficiency. Objectives To assess the effect of clinical pathways on professional practice, patient outcomes, length of stay and hospital costs. Search methods We searched the Database of Abstracts of Reviews of Effectiveness (DARE), the Effective Practice and Organisation of Care (EPOC) Register, the Cochrane Central Register of Controlled Trials (CENTRAL) and bibliographic databases including MEDLINE, EMBASE, CINAHL, NHS EED and Global Health. We also searched the reference lists of relevant articles and contacted relevant professional organisations. Selection criteria Randomised controlled trials, controlled clinical trials, controlled before and after studies and interrupted time series studies comparing stand alone clinical pathways with usual care as well as clinical pathways as part of a multifaceted intervention with usual care. Data collection and analysis Two review authors independently screened all titles to assess eligibility and methodological quality. Studies were grouped into those comparing clinical pathways with usual care and those comparing clinical pathways as part of a multifaceted intervention with usual care. Main results Twenty-seven studies involving 11,398 participants met the eligibility and study quality criteria for inclusion. Twenty studies compared stand alone clinical pathways with usual care. These studies indicated a reduction in in-hospital complications (odds ratio (OR) 0.58; 95% confidence interval (CI) 0.36 to 0.94) and improved documentation (OR 11.95: 95%CI 4.72 to 30.30). There was no evidence of differences in readmission to hospital or in-hospital mortality. Length of stay was the most commonly employed outcome measure with most studies reporting significant reductions. A decrease in hospital costs/ charges was also observed, ranging from WMD +261 US$ favouring usual care to WMD -4919 US$ favouring clinical pathways (in US$ dollar standardized to the year 2000). Considerable heterogeneity prevented meta-analysis of length of stay and hospital cost results. An assessment of whether lower hospital costs contributed to cost shifting to another health sector was not undertaken. Seven studies compared clinical pathways as part of a multifaceted intervention with usual care. No evidence of differences were found between intervention and control groups. Authors' conclusions Clinical pathways are associated with reduced in-hospital complications and improved documentation without negatively impacting on length of stay and hospital costs.