Effect of ethnic origin (Caucasians versus Turks) on the prevalence of rheumatic diseases: a WHO-ILAR COPCORD urban study in Iran.

The objective of this study was to compare the prevalence of musculoskeletal complaints and rheumatic disorders in Caucasians and Turks in an identical environment. Subjects were selected randomly for an interview from Tehran's 22 districts. The Community Oriented Program for Control of Rheumatic Diseases questionnaire was filled in, positive cases were examined, and if needed, laboratory or X-ray tests were performed.

The prevalence of musculoskeletal complaints in a rural area in Iran: a WHO-ILAR COPCORD study (stage 1, rural study) in Iran.

The objective of this study is to study the prevalence of musculoskeletal complaints and disorders in a rural area in Iran. Interviews were conducted in randomly selected subjects from five villages in Tuyserkan County, northwestern part of Iran. The three phases of stage 1 Community Oriented Program for Control of Rheumatic Diseases were done during the same day.

WHO-ILAR COPCORD Study (Stage 1, Urban Study) in Iran.

Objective: To find the prevalence of musculoskeletal complaints and rheumatic disorders in Iran.

Methods: Tehran, with one-ninth of the population of Iran and of mixed ethnic origins, was selected as the field. Subjects were randomly selected from the 22 districts.

The prevalence of oral aphthosis in a normal population in Iran: a WHO-ILAR COPCORD study.

This study was conducted to determine the prevalence of oral aphthosis in a normal population in Iran, using the data of the WHO-ILAR COPCORD study in Iran. We conducted this study in Tehran, the capital of Iran which was selected as the COPCORD study field. In 22 districts of Tehran, 50 clusters were randomly selected.