. 2015 Jul;105(7):1379–1386. doi: 10.2105/AJPH.2015.302553

TABLE 2—

Weighted Bivariate Associations Between Sample Characteristics of Sexually Experienced Female and Male Students by Sexual Identity and Gender of Sexual Partners: Youth Risk Behavior Surveillance System, 2005–2009, New York City

	Gender of Sexual Partners		Sexual Identity
Characteristics	Opposite Gender Only	Both Genders	Heterosexual	Gay, Lesbian, or Bisexual	Unsure
Female students (n = 4892)
Ever pregnant,^a^,^b^,^c %	13.7	20.1	13.3	22.6	12.2
Sexual identity,^a^,^b %
Heterosexual	93.0	24.7	. . .	. . .	. . .
Lesbian or bisexual	4.7	67.6	. . .	. . .	. . .
Unsure	2.3	7.7	. . .	. . .	. . .
Gender of sexual partners,^a^,^c %
Opposite gender only	. . .	. . .	97.0	37.3	72.2
Both genders	. . .	. . .	3.0	62.7	27.8
Race/ethnicity,^a^,^b^,^c^, %
Non-Hispanic White	9.0	12.0	9.4	8.5	11.5
Non-Hispanic Black	44.1	33.5	43.8	37.3	40.8
Hispanic (any race)	39.5	43.3	38.8	48.9	39.0
Asian/Pacific Islander	5.7	3.5	6.0	1.7	4.2
Other	1.7	7.7	2.1	3.6	4.5
Age,^d y, mean	16.0	15.9	16.1	15.9	16.0
Age at first sexual intercourse,^a^,^b^,^c y, %
≤ 13	22.3	42.9	21.9	41.8	31.4
14–15	53.6	48.0	53.9	46.7	49.7
≥ 16	24.2	9.2	24.2	11.6	18.9
No. of sexual partners,^a^,^b^,^c %
1	43.5	19.0	43.3	24.7	31.2
2–3	34.3	37.5	34.1	39.2	33.9
4–5	13.2	19.3	13.6	14.6	19.4
≥ 6	9.0	24.2	9.0	21.2	15.6
Ever forced to have sexual intercourse,^a^,^b^,^c %	15.2	34.4	15.2	29.2	29.0
Male students (n = 4811)
Ever gotten someone pregnant,^a^,^b^,^c %	9.9	37.7	10.0	28.6	32.7
Sexual identity,^a^,^b %
Heterosexual	98.5	14.4	. . .	. . .	. . .
Gay or bisexual	0.4	59.6	. . .	. . .	. . .
Unsure	1.1	25.6	. . .	. . .	. . .
Gender of sexual partners,^c %
Opposite gender only		. . .	99.6	17.6	57.0
Both genders		. . .	0.4	82.4	43.0
Race/ethnicity,^a^,^b^,^c %
Non-Hispanic White	10.0	11.9	10.0	15.7	2.9
Non-Hispanic Black	40.8	31.0	40.9	26.6	34.5
Hispanic (any race)	41.3	38.6	41.2	46.1	36.3
Asian/Pacific Islander	5.7	13.8	5.6	7.2	23.7
Other	2.2	4.7	2.3	4.4	2.6
Age,^d y, mean	15.9	15.8	15.9	15.9	15.7
Age at first sexual intercourse,^a^,^b^,^c y, %
≤ 13	50.4	69.7	50.3	72.5	59.0
14–15	38.3	22.0	38.4	18.5	32.8
≥ 16	11.3	8.4	11.3	9.0	8.3
No. of sexual partners^a^,^b
1	23.9	17.4	24.0	16.5	15.9
2–3	31.5	20.3	31.3	20.3	33.8
4–5	16.2	14.1	16.3	14.9	10.2
≥ 6	28.4	48.2	28.4	48.3	40.1
Ever forced to have sexual intercourse,^a^,^b^,^c %	6.2	30.6	6.2	25.2	24.6

Note. Sexually experienced = ever engaged in vaginal intercourse. All variables are categorical and can be interpreted as percentages unless otherwise noted.

^{^a}

χ² test.

^{^b}

P < .05; gender of sexual partners.

^{^c}

P < .05; sexual Identity.

^{^d}

F-test.