Seasonal Incidence Of Rheumatoid Arthritis In Liaoning Province

Purpose:Research focused on the pathogenesis of rheumatoid arthritis trend.Material and method:This study of 3407 cases of RA patients Affiliated Hospital of Liaoning University of Traditional Chinese Medicine Rheumatology annual income of nearly 4 hospital clinical data collection, statistical analysis for circular calculated rheumatoid arthritis peak season admission, observation of rheumatoid arthritis admission characteristics.Results:Round Statistics rheumatoid arthritis admission throttle analysis are shown in Table 1. The results are shown Σfcosα = 683.9606, Σfsinα = 873.2285, so y = 873.2285 / 3407 = 0.2563, x = 683.9606 / 3407 = 0.2008, r = 0.3256 <r 0.001, P> 0.001, indicates that a certain concentration of non-admission season, there is no admission absolute peak season. d = arctgy / x = arctgΣsinα / Σcosα = 51.95 °, will convert all day number d(ie, the average peak day admission) 51.95 ° × 365/360 = 53.4, equivalent to 29 March; = 85.8783 °; average incidence peak period : d ± s =-33.93 °-137.83 °, equivalent to January 1- June 5. Thus, our hospital patients with rheumatoid arthritis there is no absolute peak of admission, admission relative peak day of March 28, relative to the peak period of the year January 1- June 5, contains the entire spring.Conclusion:There is no absolute peak of admission in patients with rheumatoid arthritis,relatively high incidence in spring,The prevention and strengthening of the prevention of the relatively high admission season, in order to reduce the incidence of rheumatoid arthritis.