In epidemiology, prevalence is the proportion of a particular population found to be affected by a medical condition (typically a disease or a risk factor...

The prevalence of circumcision is the percentage of males in a given population who have been circumcised, with the procedure most commonly being performed...

virus (HIV), which causes AIDS, varies in prevalence from nation to nation. Listed here are the prevalence rates among adults in various countries, based...

This is a list of countries (and some territories) by the annual prevalence of opiates use as percentage of the population aged 15–64 (unless otherwise...

annual prevalence of cannabis use by country (including some territories) as a percentage of the population. The indicator is an "annual prevalence" rate...

specificity are prevalence-independent test characteristics, as their values are intrinsic to the test and do not depend on the disease prevalence in the population...

This is a list of states (and some territories) by the annual prevalence of cocaine use as percentage of the population aged 15–64 (unless otherwise indicated)...

completely homosexual. An analysis of 67 studies found that the lifetime prevalence of sex between men (regardless of orientation) was 3–5% for East Asia...

Prevalence of tobacco use is reported by the World Health Organization (WHO), which focuses on cigarette smoking due to reported data limitations. Smoking...

The prevalence of rabies, a deadly viral disease affecting mammals, varies significantly across regions worldwide, posing a persistent public health problem...