Risk factors for HIV infection: odds ratios (ORs) for selected socio-demographic factors.

NOTE: OR: odds ratio; CI: confidence interval; p: pvalue from likelihood-ratio test; pt: p value from likelihood-ratio test for linear trend; NA: not applicable.aThe category Domestic/Farmer includes females who reported being either housewives or farmers and males who reported being farmers.bAdjusted for age, occupation and marital status.cAdjusted for age, religion, occupation, marital status and length of time slept away past year.dfor males adjusted for age and marital status; for females adjusted for age, religion, marital status and length of time slept away past year.