Table 1.
Descriptive Statistics (n = 711 Individuals, 1,277 Relationships, and 12,008 Weeks; Except Where Noted)
| Percentage/mean (SD) | |
|---|---|
| Individual characteristics (n = 711 individuals) | |
| Sociodemographic background | |
| Age (range 18.12–20.31) | 19.18 (0.57) |
| African American (0/1) | 33.6 |
| Childhood disadvantage (range 0–4) | 1.33 (1.10) |
| High religious importance (0/1) | 54.1 |
| High school GPA (range 0–4.17) | 3.09 (0.63) |
| Receiving public assistance (0/1) | 27.6 |
| Enrolled in postsecondary school (0/1) | 54.6 |
| Employed (0/1) | 51.5 |
| Adolescent experiences related to pregnancy | |
| Age at first sex, 15 years or younger (0/1) | 36.3 |
| Two or more sex partners (0/1) | 70.2 |
| Ever had sex without birth control (0/1) | 56.0 |
| Any pregnancies (0/1) | 28.4 |
| Partner characteristics (n = 1,277 relationships) | |
| Age difference between partner and respondent | |
| Partner same age or younger (1) | 20.8 |
| Partner 1–2 years older (2) | 38.4 |
| Partner 3–5 years older (3) | 26.3 |
| Partner 6+ years older (4) | 14.5 |
| Partner education | |
| Less than high school (1) | 13.5 |
| High school (2) | 40.7 |
| More than high school (3) | 45.8 |
| Partner has prior children (0/1) | 15.6 |
| Relationship characteristics (n = 12,008 weeks) | |
| Seriousness | |
| Relationship type | |
| Casual (1) | 5.0 |
| Nonexclusive dating (2) | 5.4 |
| Long distance (3) | 10.3 |
| Exclusive dating (4) | 40.7 |
| Cohabiting (5) | 20.0 |
| Married/engaged (6) | 18.6 |
| Duration (months) (range 0.08–121.24) | 17.87 (18.03) |
| Instability | |
| Recent breakup (0/1) | 8.1 |
| History of breakups (0/1) | 8.9 |
| Sexual nonexclusivity (0/1) | 2.2 |
| Other | |
| Prior pregnancy or birth with current partner (0/1) | 8.4 |
| Intimate partner violence (n = 12,008 weeks) | |
| Recent physical violence (0/1) | 2.1 |
| History of physical violence in currentrelationship (0/1) | 11.7 |
| History of physical violence in prior relationship(s) (0/1) | 3.7 |
| Contraception (n = 12,008 weeks) | |
| Any contraceptive method used (0/1) | 90.1 |
| Specific contraceptive method useda | |
| LARC/injectable (0/1) | 6.1 |
| Pill/other hormonal (0/1) | 29.6 |
| Dual (condom plus LARC/injectable or pill/other hormonal) (0/1) | 21.2 |
| Condom only (0/1) | 25.8 |
| Withdrawal only (0/1) | 17.3 |
| Consistency of contraceptive method used | |
| Condom use among dualb (0/1) | 65.6 |
| Condom use among condom onlyc (0/1) | 66.1 |
| Withdrawal among withdrawal onlyd (0/1) | 28.8 |
LARC/Injectable includes IUD, implant, or Depo-Provera. Pill/Other Hormonal includes Pill, Patch, or Ring.
a
Only among weeks in which any contraception was used and not missing on type of method (n = 693; 10,742 weeks).
b
Only among respondents who reported using dual (n = 361; 2,279 weeks).
c
Only among respondents who reported using a condom only (n = 447; 2,767 weeks).
d
Only among respondents who reported using withdrawal only (n = 306; 1,863 weeks).
SD, standard deviation.