Table 4b.
aMultiple imputation method imputed missing risk factor values only. Final multiple imputation dataset includes cases reported in a five-year period, 2000–2004.
bCases in people born after 1991 were deleted.
cSE is for the percentage estimate of risk factor (in parentheses) based on multiple imputation.
dHeterosexual contact with a person known to have, or to be at high risk for HIV infection
eIncludes cases attributable to perinatal transmission in people aged 13 years or older.
fBecause of rounding, column percentages may not total 100.
HIV = human immunodeficiency virus
SE = standard error