TABLE 4.
Pregnancy Preventive Behavior and Intentions Outcomes at Girl2Girl RCT Intervention End (n = 799)
| Pregnancy Preventive Behaviors and Intentions | Control (n = 410) | Intervention (n = 389) | IRR/OR | 95% CI | P | IRR/aOR | 95% CI | P |
|---|---|---|---|---|---|---|---|---|
| No. condom-protected sex acts in the past 3 mo | ||||||||
| All youth (n = 799) mean (SD) | 1.2 (6.0) | 1.4 (5.9) | 1.21 | 1.07–1.37 | .002 | 1.48 | 1.30–1.68 | <.001 |
| Youth who have had vaginal sex in the past 3 mo at baseline (n = 135) mean (SD) | 4.7 (11.9) | 5.3 (11.6) | 1.13 | 0.97–1.31 | .13 | 1.64 | 1.40–1.93 | <.001 |
| No. condomless sex acts in the past 3 moa | ||||||||
| All youth (n = 799) mean (SD) | 0.7 (2.3) | 0.6 (2.1) | 0.83 | 0.70–0.99 | .04 | 0.79 | 0.66–0.94 | .007 |
| Youth who have had vaginal sex in the past 3 mo at baseline (n = 135) mean (SD) | 3.5 (4.4) | 2.3 (3.8) | 0.64 | 0.52–0.79 | <.001 | 0.65 | 0.53–0.80 | <.001 |
| Currently using birth control, n (%) | ||||||||
| All youth (n = 799) | 110 (26.8) | 121 (31.1) | 1.23 | 0.91–1.67 | .18 | 1.60 | 1.08–2.37 | .02 |
| Youth who have had vaginal sex in the past 3 mo at baseline (n = 135) | 37 (55.2) | 33 (48.5) | 0.76 | 0.39–1.50 | .44 | 0.98 | 0.41–2.34 | .97 |
| Abstaining from penile-vaginal sex in the past 3 mo, n (%) | ||||||||
| All youth (n = 799) | 330 (80.5) | 301 (77.4) | 0.83 | 0.59–1.17 | .28 | 0.82 | 0.55–1.23 | .34 |
| Youth who have had vaginal sex in the past 3 mo at baseline (n = 135) | 22 (32.8) | 26 (38.2) | 1.27 | 0.62–2.57 | .51 | 1.20 | 0.57–2.55 | .63 |
| Pregnancy since program enrollment, n (%) | ||||||||
| All youth (n = 799) | 8 (2.0) | 3 (0.8) | 0.39 | 0.10–1.48 | .17 | 0.43 | 0.11–1.70 | .23 |
| Youth who have had vaginal sex in the past 3 mo at baseline (n = 135) | 7 (10.5) | 3 (4.4) | 0.40 | 0.10–1.60 | .19 | 0.39 | 0.09–1.73 | .21 |
| Intentions to use condoms in the next year, n (%) | ||||||||
| All youth (n = 799) | 265 (64.6) | 261 (67.1) | 1.12 | 0.83–1.50 | .46 | 1.09 | 0.79–1.52 | .59 |
| Youth who have had vaginal sex in the past 3 mo at baseline (n = 135) | 41 (61.2) | 48 (70.6) | 1.52 | 0.74–3.12 | .25 | 1.54 | 0.72–3.30 | .26 |
| Youth who have not had sex (n = 661) | 223 (65.2) | 213 (66.8) | 1.07 | 0.78–1.48 | .67 | 1.04 | 0.72–1.51 | .84 |
| Intentions to use birth control in the next year,b n (%) | ||||||||
| All youth (n = 568) | 99 (33.0) | 128 (47.8) | 1.86 | 1.32–2.61 | <.001 | 1.93 | 1.31–2.84 | .001 |
| Youth who have had vaginal sex in the past 3 mo at baseline (n = 65) | 15 (50.0) | 27 (77.1) | 3.37 | 1.16–9.79 | .03 | 3.25 | 0.99–10.70 | .052 |
| Youth who have not had sex (n = 500) | 83 (30.9) | 101 (43.7) | 1.74 | 1.21–2.51 | .003 | 1.87 | 1.24–2.84 | .003 |
| Intentions to be abstinent in the next year, n (%) | ||||||||
| All youth (n = 799) | 178 (43.4) | 157 (40.4) | 0.88 | 0.67–1.17 | .38 | 0.95 | 0.67–1.35 | .77 |
| Youth who have had vaginal sex in the past 3 mo at baseline (n = 135) | 9 (13.4) | 7 (10.3) | 0.74 | 0.26–2.12 | .57 | 0.75 | 0.23–2.42 | .63 |
| Youth who have not had sex (n = 661) | 169 (49.4) | 150 (47.0) | 0.91 | 0.67–1.23 | .54 | 0.95 | 0.65–1.38 | .79 |
Sample size for intentions does not equal 799 because 3 people who declined to answer about recent vaginal sex are not included in either category. Models adjusted for survey mode, age, and baseline indicator of outcome of interest (eg, condom use). aIRR, adjusted incident rate ratio; aOR, adjusted odds ratio; IRR, incident rate ratio; OR, odds ratio.
a
Because of outliers (range: 0–663, SD = 24.2), censored at 10+ acts.
b
Among those not currently on birth control.