Retrospective Investigation on Risk Factors of Unexpected Sudden Cardiac Death in Yunnan,China

Objective Discussing risk factors of unexpected sudden cardiac death(USUD) in Yunnan Province,providing the scientific basis for control and prevention.Methods Investigation on the USUD cases and simultaneously cases was carried out to search resemble cases in 22 counties and 10 control counties in Yunnan Province from 1978 to 2004.The result was made Logistic regressive analysis of risk factors after checking the investigated data.Results There were total of 231 cases with Yunnan unexpected cardiac sudden death,13 simultaneous cases,68 cases of non-USUD.Out of 34 suspicious factors,there were the yearly income per person of protective factor(OR=0.432,95%CI:[0.299,0.817]);Sex(OR=5.018,95%CI:[1.327,18.353 ]),height of habitation(OR=1.002,95%CI:[1.000,1.004]),serum CVB-IgM(OR=3.290,95%CI:[1.990,7.653]),weep(OR=4.380,95%CI:[1.177,8.815]) and picking wild mushroom(OR=3.375,95%CI:[1.160,6.880]) of risk factors.Conclusions USUD is probably concerned with the sex,living condition,geology,climate,enterovirus infection,stress,the risk factors exposure in moutains and so on.