Table 3. Association between HIV status and potential horizontal risk factors for HIV.

Horizontal risk factors	Exposure	N	HIV+%	AOR (95% CI) †	p-value‡
Ever had a blood transfusion	No	3,355	2.15%	Referent	0.14
	Yes	7	14.3%	6.51 (0.80–53.34)
Lifetime number of non-vaccination injections	0	2491	1.73%	Referent	0.004
	>0	873	3.44%	2.19 (1.23–3.89)
Received tuberculosis, polio, measles, and/or diphtheria vaccination	No	10	0%	Referent	0.81
	Yes	3364	2.11%	N/A
Breastfed by non-biological mother	No	3359	2.14%	Referent	0.71
	Yes	16	0%	N/A
Cared for a sick relative (ages 6–14)	No	2403	2.29%	Referent	0.45
	Yes	35	0%	N/A
Ever been sexually abused (ages 7–14)	No	2180	2.25%	Referent	N/A
	Yes	4	0%	N/A

^†Adjusted odds ratio; adjusted for age, gender, SES, and site type.

^‡Fisher's exact test for difference of proportions.

NB: Different Ns are due to different question non-response rates.