age-specific prevalence of anti-HAV
Baseline infection prevalence
Bottom-up and prevalence based approach
caries prevalence
龋齿盛行率
龋齿发生率
乳牙龋齿盛行率
乳齿龋齿盛行率
患龋率
Characteristic of prevalence
Charateristics in prevalence
Chronic disease prevalence
chronic prevalence rate
Contraceptive prevalence
dental caries prevalence rate
diabetes mellitus prevalence