TABLE 3.

Unadjusted Associations Between Exposure Variables and Ever Having Had Sex, Having More Than 1 Lifetime Sexual Partner, and Not Using a Condom at Last Sexual Intercourse: Aboriginal Adolescent Health Survey, British Columbia, 2003

	Young Women						Young Men
	Ever Had Sexual Intercourse (n = 1336)		> 1 Lifetime Partner (n = 444)		No Condom at Last Act of Sexual Intercourse (n = 440)		Ever Had Sexual Intercourse (n = 1140)		> 1 Lifetime Partner (n = 358)		No Condom at Last Act of Sexual Intercourse (n = 351)
	OR (95% CI)	P	OR (95% CI)	P	OR (95% CI)	P	OR (95% CI)	P	OR (95% CI)	P	OR (95% CI)	P
Age, y	1.76a (1.58, 1.95)	<.001	1.14a (0.98, 1.34)	.097	1.40a (1.17, 1.67)	<.001	1.67a (1.51, 1.85)	<.001	1.17a (0.99, 1.38)	.058	1.06a (0.86, 1.30)	.592
Learned about culture from family, yesb	1.05 (0.72, 1.53)	.786	1.79 (0.98, 3.28)	.057	1.00 (0.54, 1.82)	.990	1.04 (0.69, 1.56)	.849	0.80 (0.40, 1.59)	.518	0.93 (0.50, 1.72)	.812
Learned about culture from school, yesb	1.11 (0.78, 1.58)	.549	0.71 (0.40, 1.24)	.228	0.80 (0.44, 1.48)	.481	0.85 (0.62, 1.17)	.320	0.78 (0.44, 1.40)	.408	0.43 (0.24, 0.75)	.003
Learned about culture from community, yesb	1.05 (0.75, 1.47)	.780	1.80 (1.01, 3.18)	.045	2.01 (1.13, 3.57)	.017	1.24 (0.84, 1.82)	.285	0.75 (0.40, 1.12)	.374	1.00 (0.53, 1.87)	.995
Ever lived on a reserve, yesb	1.60 (1.11, 2.30)	.011	2.16 (1.29, 3.62)	.003	2.09 (1.24, 3.55)	.006	1.79 (1.24, 2.60)	.002	1.19 (0.65, 2.16)	.572	1.32 (0.69, 2.55)	.400
Helped in community, past year, yesb	0.98 (0.69, 1.40)	.926	0.45 (0.26, .79)	.005	1.07 (0.60, 1.89)	.826	1.26 (0.84, 1.89)	.268	1.30 (0.65, 2.61)	.463	0.69 (0.34, 1.38)	.288
Helped neighbors, past year, yesb	0.75 (0.54, 1.04)	.085	0.95 (0.57, 1.59)	.857	1.02 (0.60, 1.73)	.94	0.93 (0.65, 1.34)	.695	1.16 (0.62, 2.18)	.634	0.94 (0.50, 1.75)	.844
School connectedness (range 1–5), high	0.72a (0.60, .87)	.001	0.68a (0.48, 0.96)	.029	1.06a (0.71, 1.60)	.761	0.78a (0.64, .96)	.014	0.67a (0.48, 0.94)	.021	1.05a (0.70, 1.59)	.805
Peers would be angry if became pregnant, yesb	0.58 (0.41, 0.82)	.002	1.00 (0.61, 1.64)	.986	0.69 (0.42, 1.12)	.129	1.05 (0.75, 1.48)	.758	0.91 (0.51, 1.61)	.749	1.18 (0.68, 2.07)	.550
Family connectedness (range 1–3), high	0.55a (0.41, 0.72)	<.001	0.62a (0.36, 1.06)	.079	0.66a (0.39, 1.12)	.122	0.53a (0.38, .76)	<.001	0.90a (0.51, 1.59)	.727	0.65a (0.37, 1.16)	.148
Lifetime substance use, highc	7.11 (5.02, 10.09)	<.001	4.78 (2.88, 7.95)	<.001	1.31 (0.77, 2.25)	.321	13.40 (8.94, 20.08)	<.001	2.38 (1.32, 4.29)	.004	1.41 (0.74, 2.67)	.297
Ever been sexually abused, yesb	…	…	1.91 (1.18, 3.09)	.009	1.29 (0.79, 2.12)	.313	…	…	1.33 (0.52, 3.43)	.554	5.16 (2.40, 11.10)	<.001
Other contraception at last act of sexual intercourse, yesb	…	…	…	…	60.11 (16.54, 218.47)	<.001	…	…	…	…	27.28 (12.95, 57.44)	<.001
Substance use at last act of sexual intercourse, yesb	…	…	…	…	0.99 (0.56, 1.71)	.958	…	…	…	…	1.38 (0.77, 2.48)	.280

Note. OR = odds ratio; CI = confidence interval. Analyses were based on weighted data and were adjusted for survey design. Range refers to the number of participants in each analysis, which vary slightly because of missing data: for young women who had ever had sex, the range was 1163 to 1336; for young women with more than 1 lifetime partner, the range was 387 to 444; for young women who did not use a condom at sexual intercourse, the range was 385 to 440; for young men who have ever had sexual intercourse, the range was 974 to 1140; for young men with more than 1 lifetime partner, the range was 317 to 358; for young men who did not use a condom at last sexual intercourse, the range was 310 to 351.

^aOR should be interpreted as increase in odds of outcome for every unit increase in exposure score.

^bThe referent category was “No.”

^cThe referent category was “Low.”