Epidemiology of eight common rheumatic diseases in China: a large-scale cross-sectional survey in Beijing.

Department of Rheumatology and Immunology, Peking University People's Hospital, 11 Xizhimen South St, Beijing 100044, China.
Rheumatology (Oxford, England) (Impact Factor: 4.24). 12/2011; 51(4):721-9. DOI:10.1093/rheumatology/ker370
Source: PubMed

ABSTRACT To investigate the prevalence of eight common rheumatic diseases in a large Chinese population.
A population-based epidemiological investigation of the prevalence of eight common rheumatic diseases in a suburb of Beijing was conducted in 14 642 individuals. A community-based survey was carried out using a screening questionnaire. Positive responders were included in a clinical and laboratory examination. Diagnosis was based on the criteria of ACR or those used widely in literature.
A total of 10 556 inhabitants were interviewed. Forty-three cases of RA were identified with an age-adjusted prevalence of 0.28% (95% CI 0.19%, 0.41%). Gout was diagnosed with a crude prevalence of 0.09% (95% CI 0.05%, 0.17%). Psoriasis was reported in 28 individuals with a prevalence of 0.27% (95% CI 0.18%, 0.38%). This included two cases diagnosed with PsA, resulting in a prevalence of 7.14% (95% CI 0.88%, 23.5%) in psoriasis patients and 0.02% (95% CI 0%, 0.07%) in the general population. Three individuals were identified with SLE, with a prevalence of 0.03% (95% CI 0%, 0.06%). One individual was identified with SSc and the calculated prevalence was 0.01% (95% CI 0%, 0.05%). One case of Behçet's disease was identified, giving a prevalence of 0.01% (95% CI 0%, 0.05%).
This large-scale epidemiological survey provides an estimate of the burden of rheumatic diseases in China.

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