云南省35个村不明原因猝死发病特征分析

Characteristics of 35 villages with incidence of sudden unexplained death in Yunan proveince

目的通过调查云南省不明原因猝死发病的主要特征,为探明35个村不明原因猝死的危险因素提供依据。方法采用1∶3配比病例对照研究方法,选择35个发病自然村和105个对照村,调查人口、水源、矿场、周围环境等因素。结果70.0%的病例自然村年人均收入处于相对贫困线以下,36.7%处于绝对贫困线以下 病例自然村和对照村与乡医院的平均距离为13.6和11.7 km 自然村周围有矿场（OR=4.18,95%CI=1.05-16.64）和与乡医院距离远（OR=1.25,95%CI=1.05-1.49）的地区发生不明原因猝死的危险增加。结论远离城镇、交通不便、居民生活水平低下、卫生条件差等可能是不明原因猝死发生的背景因素,而与自然村周围的地质环境的关系可能更为密切。

Objective To provide clues for risk factors of sudden unexplained death （SUD） in Yunnan province by describing main characteristics of the villages with cases of SUD and comparing differences between case and control villages. Methods A 1：3 case-control questionnaire survey was conducted among 35 case villages and 105 control villages to compare their demographic and environmental characteristics. Results Annual average income of residents in 70.0% of villages with SUD cases was less than 1067 RMB Yuan and that of for 36.7% of villages with SLID cases was less than 786 RMB Yuan. The mean distance between case villages and town hospitals was 13.6 kilometers, and that between control villages and town hospitals was 11.7 kilometers. Mines near the villages （ OR = 4. 18,95% CI = 1.05 - 16.64 ） and far away from town hospital （ OR = 1.25,95% CI = 1.05 - 1.49） were associated with the increased risk of SLID. Conclusion The main risk factors of SUD might be the geologic environment around case villages, and background factors might include far away from cities, inconvenient traffic, lower income, and worse environmental hygiene.