alexa Epidemiology of rheumatic diseases. A community-based study in urban and rural populations in the state of Nuevo Leon, Mexico.


Lupus: Open Access

Author(s): RodriguezAmado J, PelezBallestas I, Sanin LH, EsquivelValerio JA, BurgosVargas R,

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Abstract OBJECTIVE: To estimate the prevalence of rheumatic diseases in rural and urban populations using the WHO-ILAR COPCORD questionnaire. METHODS: We conducted a cross-sectional home survey in subjects > 18 years of age in the Mexican state of Nuevo Leon. Results were validated locally against physical examination in positive cases according to an operational definition by 2 rheumatologists. We used a random, balanced, and stratified sample by region of representative subjects. RESULTS: We surveyed 4713 individuals with a mean age of 43.6 years (SD 17.3); 55.9\% were women and 87.1\% were from urban areas. Excluding trauma, 1278 individuals (27.1\%, 95\% CI 25.8\%-28.4\%) reported musculoskeletal pain in the last 7 days; the prevalence of this variable was almost twice as frequent in women (33\% vs 17\% in men); 529 (11.2\%) had pain associated with trauma. The global prevalence of pain was 38.3\%. Mean pain score was 2.4 (SD 3.4) on a pain scale of 0-10. Most subjects classified as positive according to case definition (99\%) were evaluated by a rheumatologist. Main diagnoses were osteoarthritis in 17.3\% (95\% CI 16.2-18.4), back pain in 9.8\% (95\% CI 9.0-10.7), undifferentiated arthritis in 2.4\% (95\% CI 2.0-2.9), rheumatoid arthritis in 0.4\% (95\% CI 0.2-0.6), fibromyalgia in 0.8\% (95\% CI 0.6-1.1), and gout in 0.3\% (95\% CI 0.1-0.5). CONCLUSION: This is the first regional COPCORD study in Mexico performed with a systematic sampling, showing a high prevalence of pain. COPCORD is a useful tool for the early detection of rheumatic diseases as well as for accurately referring patients to different medical care centers and to reduce underreporting of rheumatic diseases. This article was published in J Rheumatol Suppl and referenced in Lupus: Open Access

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