Table 3.
Adjusted associations between selected participant characteristics and use of dual methods, condom alone, or hormonal method or IUD alone; adjusted odds ratios (aOR) and 95% confidence intervals (CI)*
| Dual Method aOR1 (95% CI) |
Condom alone aOR1 (95% CI) |
Hormonal/IUD alone aOR1 (95% CI) |
|
|---|---|---|---|
| Insurance | |||
| None | 0.39 (0.18 – 0.82) | 0.84 (0.45 – 1.57) | 0.57 (0.28 – 1.19) |
| Private, public or don’t know | 1.00 (Reference) | 1.00 (Reference) | 1.00 (Reference) |
| Participant’s mother completed High School or GED | |||
| Yes | 1.31 (0.68 – 2.51) | 1.71 (0.92 – 3.17) | 2.56 (1.35 – 4.87) |
| No | 1.00 (Reference) | 1.00 (Reference) | 1.00 (Reference) |
| Participant’s mother’s age at first birth <20 | |||
| Yes | 2.34 (1.21 – 4.52) | 1.46 (0.83 – 2.60) | 1.54 (0.84 – 2.85) |
| No | 1.00 (Reference) | 1.00 (Reference) | 1.00 (Reference) |
| Previous STD | |||
| Yes | 2.30 (1.26 – 4.18) | 0.98 (0.54 – 1.78) | 2.03 (1.12 – 3.69) |
| No | 1.00 (Reference) | 1.00 (Reference) | 1.00 (Reference) |
| Participant has given birth to a child that lives with her | |||
| Yes | 2.13 (0.87 – 5.18) | 0.88 (0.28 – 2.83) | 3.86 (1.72 – 8.65) |
| No | 1.00 (Reference) | 1.00 (Reference) | 1.00 (Reference) |
| Perception of diagnosis of pregnancy in next six months | |||
| It would be the worst thing that could happen | 2.25 (1.19 – 4.28) | 2.10 (1.15 – 3.82) | 1.18 (0.59 – 2.34) |
| Other | 1.00 (Reference) | 1.00 (Reference) | 1.00 (Reference) |
| Lifetime partners | |||
| 1–3 | 1.00 (Reference) | 1.00 (Reference) | 1.00 (Reference) |
| 4 or more | 0.42 (0.22 – 0.78) | 1.02 (0.57 – 1.84) | 0.96 (0.52 – 1.74) |
| Coital frequency | |||
| ≥ once per week | 0.54 (0.29 – 0.99) | 0.34 (0.19 – 0.59) | 0.91 (0.51 – 1.63) |
| < once per week | 1.00 (Reference) | 1.00 (Reference) | 1.00 (Reference) |
| Agreed to monogamy with most recent partner | |||
| Yes | 0.40 (0.16 – 0.96) | 0.83 (0.38 – 1.83) | 2.04 (0.74 – 5.60) |
| No | 1.00 (Reference) | 1.00 (Reference) | 1.00 (Reference) |
1
Versus use of no method or other methods
*
All characteristics listed in Table 1 were entered into a full model. Generalized Estimating Equation was used to account for repeated measures in participants who reported more than one sexual encounter in the past six months with the same partner.