Table 2.
Pregnancy-Related Behaviors by Sexual Identity, Attraction, and Experience, United States National Survey of Family Growth Survey Cycles 2002–2015, Females 15–19 Years of Age (N = 5481)
| Total out of full sample N | Pregnancy-related behaviors by sexual identitya | ||||||
|---|---|---|---|---|---|---|---|
| Heterosexual (n = 4776) | Gay/Lesbian (n = 95) | Bisexual (n = 439) | |||||
| Unweighted n (weighted %) | Unweighted n (weighted %) | Unweighted n (weighted %) | Unweighted n (weighted %) | χ2 | pb | ||
| Ever had intercoursec | 2523 (44.15) | 2144 (43.07) | 39 (34.28) | 277 (62.35) | 32.47 | <0.001 | |
| Sexual risk with males (of those who have had intercoursec) | |||||||
| ≥3 Lifetime sexc partners | 921 (41.39) | 754 (39.00) | 13 (45.18) | 134 (61.65) | 35.47 | <0.001 | |
| Past-year transactional sexd | 52 (2.02) | 30 (1.25) | 4 (6.30) | 13 (6.29) | 7.53 | 0.023 | |
| Past-year condomless sexc | 1457 (60.98) | 1244 (61.69) | 10 (11.62) | 161 (61.05) | 20.85 | <0.001 | |
| First intercourse ≤age 14c | 240 (10.13) | 208 (9.26) | 6 (25.40) | 24 (12.39) | 2.32 | 0.314 | |
| Past-year substance use | |||||||
| Any drug usee | 1427 (25.68) | 1133 (23.12) | 38 (45.90) | 214 (48.13) | 45.57 | <0.001 | |
| Any alcohol use | 3270 (59.84) | 2798 (58.36) | 65 (75.61) | 330 (75.59) | 35.53 | <0.001 | |
| Total out of full sample N | Pregnancy-related behaviors by sexual attractiona | ||||||
|---|---|---|---|---|---|---|---|
| Only to males (n = 4361) | Only to females (n = 50) | To both (n = 978) | Not sure (n = 68) | ||||
| Unweighted n (weighted %) | Unweighted n (weighted %) | Unweighted n (weighted %) | Unweighted n (weighted %) | Unweighted n (weighted %) | χ2 | pb | |
| Ever had intercoursec | 2523 (44.15) | 2483 (58.94) | 34 (77.43) | 374 (38.53) | 51 (69.81) | 57.91 | <0.001 |
| Sexual risk with males (of those who have had intercoursec) | |||||||
| ≥3 Lifetime sexc partners | 921 (41.39) | 637 (37.31) | 2 (14.84) | 276 (55.43) | 5 (73.51) | 21.41 | <0.001 |
| Past-year transactional sexd | 52 (2.02) | 30 (1.50) | 0 (0.00) | 19 (3.70) | 1 (1.61) | 2.72 | 0.099 |
| Past-year condomless sexc | 1457 (60.98) | 1073 (61.13) | 2 (8.01) | 371 (61.98) | 11 (77.35) | 10.25 | 0.017 |
| First intercourse ≤age 14c | 240 (10.13) | 175 (8.53) | 3 (50.30) | 61 (12.75) | 1 (0.37) | 6.70 | 0.082 |
| Past-year substance use | |||||||
| Any drug usee | 1427 (25.68) | 926 (20.75) | 21 (50.16) | 460 (47.15) | 18 (33.58) | 71.32 | <0.001 |
| Any alcohol use | 3270 (59.84) | 2462 (56.29) | 33 (70.74) | 741 (77.36) | 32 (50.35) | 62.80 | <0.001 |
| Total out of full sample N | Pregnancy-related behaviors by sexual experiencea | ||||||
|---|---|---|---|---|---|---|---|
| Only males (n = 2578) | Only females (n = 97) | Both (n = 580) | No sex partners (n = 2192) | ||||
| Unweighted n (weighted %) | Unweighted n (weighted %) | Unweighted n (weighted %) | Unweighted n (weighted %) | Unweighted n (weighted %) | χ2 | pb | |
| Ever had intercoursec | 2523 (44.15) | 2002 (76.48) | 0 (0.00) | 509 (86.84) | 0 (0.00) | 0.97 | 0.325 |
| Sexual risk with males (of those who have had intercoursec) | |||||||
| ≥3 Lifetime sexc partners | 921 (41.39) | 660 (36.97) | N/A | 259 (62.73) | N/A | 13.76 | <0.001 |
| Past-year transactional sexd | 52 (2.02) | 27 (1.23) | N/A | 24 (5.75) | N/A | 6.83 | 0.009 |
| Past-year condomless sexc | 1457 (60.98) | 1117 (61.35) | N/A | 340 (59.69) | N/A | 0.21 | 0.647 |
| First intercourse ≤age 14c | 240 (10.13) | 186 (8.60) | N/A | 54 (14.92) | N/A | 4.71 | 0.030 |
| Past-year substance use | |||||||
| Any drug usee | 1427 (25.68) | 842 (33.26) | 32 (30.73) | 356 (60.89) | 191 (8.83) | 350.51 | <0.001 |
| Any alcohol use | 3270 (59.84) | 1867 (74.43) | 69 (75.92) | 499 (86.61) | 826 (36.68) | 462.43 | <0.001 |
a
Unweighted n may not add up to 100% of the total due to missing data.
b
Results based on Rao-Scott modified chi-square tests. Bold indicates p < 0.05.
c
“Intercourse” and “sex” defined as penile–vaginal intercourse with male partner(s).
d
Exchanged money or drugs with a male for sex.
e
Includes any past-year use of marijuana, cocaine, crack, crystal methamphetamine, and/or nonprescription injection drug use.
N/A, not applicable.