ATTRIBUTABLE RISK OF EXPOSURES ASSOCIATED WITH SEXUALLY-TRANSMITTED DISEASE

Attributable risk combines information on the prevalence of an exposur e with a measure of the associated increment in risk, providing an est imate of the proportion of incident or prevalent disease that might be avoided by eliminating the exposure. Thus, attributable risk identifi es exposures most productively targeted by public health interventions . Attributable risk can be defined as the ratio of average excess risk to average risk. As with other measures of association between exposu re and disease computed from observational data, adjustment must be ma de for confounding factors. Estimates of attributable risk are highly variable. Nonetheless, attributable risk retains its usefulness as an approximate measure of the public health significance of exposures ass ociated with acquisition of sexually transmitted disease, provided it is estimated and interpreted cautiously.