TABLE 1—

Bivariate Associations of Selected Demographic Factors and Baseline Serology With Hepatitis B Vaccine Completion Among Young Injectors in San Francisco, Calif (N = 170)

	No. of Completers/n (%)	OR (95% CI)	P
All participants	80/170 (47.1)
Age, y (median = 21; interquartile range = 19–24)
15–19	26/54 (48.1)	1.00	.40
20–24	31/74 (41.9)	0.78 (0.36, 1.67)
25–29	23/42 (54.8)	1.30 (0.54, 3.17)
Sex
Male	57/120 (47.5)	1.00	.86
Female	23/50 (46.0)	0.94 (0.46, 1.92)
Race (n = 169)
White	64/142 (45.1)	1.00	.32
Non-White	15/27 (55.6)	1.52 (0.62, 3.77)
Education (n = 169)
< High school	40/85 (47.1)	1.00	.94
High school graduate	26/53 (49.1)	1.08 (0.51, 2.28)
Some college	14/31 (45.2)	0.93 (0.37, 2.29)
Months lived in San Francisco
< 3	31/86 (36.0)	1.00	< .01
≥ 3	49/84 (58.3)	2.48 (1.28, 4.84)
Prior HIV test
No	7/30 (23.3)	1.00	< .01
Yes	73/140 (52.1)	3.58 (1.35, 9.87)
HIV antibody (n = 169)
Negative	79/168 (47.0)	. . .	.29
Positive	1/1 (100.0)
Hepatitis B antibody
Negative	75/163 (46.0)	1.00	.19
Positive	5/7 (71.4)	2.93 (0.46, 31.45)
Hepatitis C antibody (n = 169)
Negative	46/112 (41.1)	1.00	.04
Positive	33/57 (57.9)	1.97 (1.03, 3.77)

Note. OR = odds ratio; CI = confidence interval.