title: Prevalence of the rheumatic diseases in urban Vietnam: a WHO-ILAR COPCORD study.
abstract: OBJECTIVE
  To determine the prevalence rates of musculoskeletal disorders in an urban Vietnamese population.
  
  
  METHODS
  The Community Oriented Program for Control of Rheumatic Disease (COPCORD) Stage I study was carried out in 16 groups in the Trung Liet Commune, Dong Da District, Hanoi City, Vietnam. Phase 1: the WHO ILAR COPCORD Core Questionnaire was applied by primary health care workers to 2119 urban subjects aged 16 years and over. Phase 2: 276 positive responders who had musculoskeletal complaints were interviewed by nurses and examined one week later. Phase 3: 261 positive responders in phase II were examined by 3 rheumatologists and 38% of these subjects required radiographic and blood tests to classify rheumatic disease categories.
  
  
  RESULTS
  The response rates were 94.4%, 86.2%, and 94.6% in phases 1, 2, and 3, respectively. The prevalence of musculoskeletal pain was 14.9%. The most common musculoskeletal complaints were knee pain 18.2%, low back pain 11.2%, and soft tissue disorder 15.4%. Functional disability was reported in 6.04% of the survey population. The prevalence of rheumatic diseases was OA 4.1%, rheumatoid arthritis 0.28%, osteoporosis 0.47%, connective tissue disease 0.09%, and gout 0.14%.
  
  
  CONCLUSIONS
  The prevalence of musculoskeletal pain in 2119 adults in an urban population in Vietnam was 14.5%, and osteoarthritis was the most commonly found arthritis.
authors.affiliation: Department of Rheumatology, Bach Mai Hospital, Giai Phong Road, Dong Da District, Hanoi, Vietnam.
authors.forename: Tran Thi
authors.initials: TT
authors.lastname: Minh Hoa
authors.forename: John
authors.initials: J
authors.lastname: Darmawan
authors.forename: Shun Le
authors.initials: SL
authors.lastname: Chen
authors.forename: Nguyen
authors.initials: N
authors.lastname: Van Hung
authors.forename: Cao
authors.initials: C
authors.lastname: Thi Nhi
authors.forename: Tran
authors.initials: T
authors.lastname: Ngoc An
authors.forename: John
authors.initials: J
authors.lastname: Damarwan
authors.forename: Chen
authors.initials: C
authors.lastname: Shun Le
mesh_terms: D000203:Activities of Daily Living; D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D004185:Disability Evaluation; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009790:Occupations; D010003:Osteoarthritis / Q000150:complications / Q000453:epidemiology / Q000503:physiopathology; D010146:Pain / Q000453:epidemiology / Q000209:etiology / Q000503:physiopathology; D015995:Prevalence; D012216:Rheumatic Diseases / Q000150:complications / Q000453:epidemiology* / Q000503:physiopathology; D011795:Surveys and Questionnaires; D014505:Urban Population; D014744:Vietnam / Q000453:epidemiology