Estimated prevalence of T. vaginalis infection by race/ethnicity and gender.

Results from the 2006–09 Monitoring STIs Survey Program (MSSP). “Observed” estimates use only data from respondents who provided biospecimens for testing. All estimates are weighted to account for differing probabilities of selection and post-stratification adjustment to match Census marginals for Baltimore, Maryland (see text). “Observed + Imputed” estimates include multiply imputed data for respondents with missing biospecimens or other missing data (see text). All base Ns are unweighted. Confidence intervals (CI) were calculated using statistical algorithms that take account of the complex sample design used in the surveys. Confidence intervals for “observed + Imputed” estimates also take account of the impact of imputation of missing data on variance of prevalence estimates.(a)Persons describing themselves as Hispanic are coded as Non-Black.