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The worldwide incidence and prevalence of systemic lupus erythematosus: a systematic review of epidemiological studies.

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TLDR
There are worldwide differences in the incidence and prevalence of SLE that vary with sex, age, ethnicity and time and further study of genetic and environmental risk factors may explain the reasons for these differences.
Abstract
Objectives The aim was to review the worldwide incidence and prevalence of SLE and variation with age, sex, ethnicity and time. Methods A systematic search of MEDLINE and EMBASE search engines was carried out using Medical Subject Headings and keyword search terms for Systemic Lupus Erythematosus combined with incidence, prevalence and epidemiology in August 2013 and updated in September 2016. Author, journal, year of publication, country, region, case-finding method, study period, number of incident or prevalent cases, incidence (per 100 000 person-years) or prevalence (per 100 000 persons) and age, sex or ethnic group-specific incidence or prevalence were collected. Results The highest estimates of incidence and prevalence of SLE were in North America [23.2/100 000 person-years (95% CI: 23.4, 24.0) and 241/100 000 people (95% CI: 130, 352), respectively]. The lowest incidences of SLE were reported in Africa and Ukraine (0.3/100 000 person-years), and the lowest prevalence was in Northern Australia (0 cases in a sample of 847 people). Women were more frequently affected than men for every age and ethnic group. Incidence peaked in middle adulthood and occurred later for men. People of Black ethnicity had the highest incidence and prevalence of SLE, whereas those with White ethnicity had the lowest incidence and prevalence. There appeared to be an increasing trend of SLE prevalence with time. Conclusion There are worldwide differences in the incidence and prevalence of SLE that vary with sex, age, ethnicity and time. Further study of genetic and environmental risk factors may explain the reasons for these differences. More epidemiological studies in Africa are warranted.

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Citations
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Epidemiology of systemic lupus erythematosus: an update.

TL;DR: Sex, race, and ethnicity significantly affect SLE incidence, prevalence, and mortality.
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Global epidemiology of systemic lupus erythematosus

TL;DR: In this article, the authors summarize and discuss the existing evidence on the incidence, prevalence and mortality of systemic lupus erythematosus across different world regions, with a focus on studies from the past 5 years.
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Shared gut, but distinct oral microbiota composition in primary Sjögren's syndrome and systemic lupus erythematosus.

TL;DR: pSS and SLE patients share similar alterations in gut microbiota composition, distinguishing patients from individuals in the general population, while oral microbiota composition shows disease-specific differences between pSS andSLE patients.
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The risks of cancer development in systemic lupus erythematosus (SLE) patients: a systematic review and meta-analysis

TL;DR: This comprehensive meta-analysis provides epidemiological evidence supporting the associations between SLE and cancer risk and could be utilized to drive public policies and to help guide personalized medicine to better manage Sle and reduce associated cancer morbidity and mortality.
References
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Journal ArticleDOI

Systemic lupus erythematosus

TL;DR: Systemic lupus erythematosus is a relapsing and remitting disease, and treatment aims are threefold: managing acute periods of potentially life-threatening ill health, minimizing the risk of flares during periods of relative stability, and controlling the less life- threatening, but often incapacitating day to day symptoms.
Journal ArticleDOI

Epidemiology of systemic lupus erythematosus: a comparison of worldwide disease burden.

TL;DR: Data on SLE incidence and prevalence in the USA, Europe, Asia, and Australia over the period of 1950-early 2006 is summarized to clarify the role of genetic, environmental and other causative factors in the natural history of the disease, and to understand its clinical and societal consequences.
Journal ArticleDOI

Trends in the incidence and mortality of systemic lupus erythematosus, 1950–1992

TL;DR: Over the past 4 decades, the incidence of SLE has nearly tripled, and there has been a statistically significant improvement in survival.
Journal ArticleDOI

Incidence of systemic lupus erythematosus race and gender differences

TL;DR: The authors' rates clearly confirm previous reports of an excess incidence of SLE among females compared with males and among African-Americans compared with whites, and advocate their use to facilitate comparisons across studies.
Journal ArticleDOI

The prevalence and incidence of systemic lupus erythematosus in Birmingham, England. Relationship to ethnicity and country of birth.

TL;DR: Dramatic differences in incidence and prevalence rates in the UK, depending on ethnic group and irrespective of place of birth are illustrated.
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