重庆市城乡居民龋病流行病学抽样调查报告

Report on random survey for the epidemiology of dental caries among the urban and rural citizens in Chongqing

目的:掌握重庆市城乡居民龋病患病现状,为制订口腔保健规划与目标,合理配置口腔卫生保健资源提供一定的理论依据。方法:根据《第3次全国口腔健康流行病学抽样调查方案》,采用多阶段、分层、等容量、不等比、随机抽样的方法,抽取重庆市6个区县,5、12、35～44、65～74岁4个年龄组(城乡,男女各半),共3 168人进行口腔健康检查,有效样本量为2 942人。结果:重庆市5、12、35～44、65～74岁4个年龄组患龋率分别为:64.34%、23.83%、56.71%和79.78%,除5岁组外,其余各组均为女性高于男性(P<0.05);龋均分别为:3.57、0.49、1.58和5.00,除12岁组外,其余各组龋均农村高于城市(P<0.01),除5岁组外,其余各组龋均女性高于男性(P<0.05);龋齿充填率分别为:0.60%、4.64%、7.36%和2.44%,4个年龄组充填率城市均高于农村(P<0.05)。结论:与1995年第2次全国口腔健康流行病学调查结果相比,除65～74岁年龄组外,重庆市城乡居民患龋率和龋均均低于全国水平;但龋病仍广泛存在,各年龄组充填率还是较低。

Objective：To know the prevalence of dental caries among the urban and rural citizens in Chongqing to provide evidence for effective programs in preventing dental caries. Meihods：Based on The Guideline for the Third National Oral Health Survey,with nonproportional stratified cluster sampling method,3168 citizens from six districts and counties underwent oral examination.Together there were 4 age groups,5,12,35-44 and 65-74 year-old.For each group,male and female were of the same number,and the rural and the urban were also of the same number.A total sample of 2942 was effective. Results： the prevalence rates of dental caries for 5,12,35-44,65N74-year-old groups were 64.34% ,23.83% ,56.71% and 79.78% respectively, and the mean DMFT （dmft） were 3.57,0.49,1.58 and 5.00 respectively.Both the prevalence rate and the mean DMFT（dmft） of female were higher than those of male except 5-year-old group（P〈0.05）. The mean DMFT（dmft） in rural was higher than that in urban except 12-year-old group（P〈0.01 ）. The filled tooth rates of 4 groups were 0.60%,4.64%,7.36% and 2.44% respectively,and the rate in urban was higher than that in rural （P〈0.05）. Conclusion：Compare with the result of the second national oral health sampling survey,the prevalence rate of dental caries and the mean DMFT （dmft） of Chongqing inhabitants are lower than the average levels in China except the 65-74-year-old group. However,dental caries still widely exist and the filled tooth rate of each group is comparatively low.