Prevalence of musculoskeletal disorders and rheumatic diseases in an urban community in Monagas State, Venezuela: a COPCORD study

The aim of the study was to determine the prevalence of musculoskeletal disorders and rheumatic diseases in an urban community in Venezuela. We conducted a cross-sectional, community-based study using the COPCORD (Community Oriented Program for Control of Rheumatic Diseases) methodology in subjects older than 18 years. Positive cases were evaluated by rheumatologists. We surveyed 3,973 individuals (1,606 males and 2,367 females), with a mean age of 43.7 years (standard deviation (SD) 17.6). Mean duration of education was 8.9 years (SD 3.7), 79.2 % had a monthly income of < US$569, and 46.4 % were working. Excluding trauma, the prevalence of pain in the 7 days prior to interview was 19.9 % (95 % confidence interval (CI) 18.7–21.2 %). Mean pain intensity on a visual analog scale was 6.3 (SD 2.2), and 30.1 % (95 % CI 28.7–31.6 %) had a history of pain. Respondents reported pain in the knees, back, hands, shoulders, and ankles in the last 7 days; 4.7 % described current functional limitation, with 16.5 % reporting limitations in the past. Regarding treatment, 23.9 % received medication, 6.4 % received physical therapy, and 2.6 % received alternative treatment. The main diagnoses were osteoarthritis in 15.0 % (95 % CI 13.9–16.1 %), rheumatic regional pain syndromes in 6.3 % (95 % CI 5.5–7.1 %), back pain in 2.8 % (95 % CI 2.3–3.4 %), rheumatoid arthritis in 0.4 % (95 % CI 0.2–0.6 %), crystal arthropathy in 0.3 % (95 % CI 0.1–0.5 %), fibromyalgia in 0.2 % (95 % CI 0.1–0.4 %), and systemic lupus erythematosus in 0.07 % (95 % CI 0.01–0.2 %). The prevalence of musculoskeletal disorders was 22.4 %, and the most prevalent disease was osteoarthritis. Pain, in which a patient is receiving treatment for musculoskeletal disorders, and physical disability were associated with the presence of a rheumatic disease.