Table 1.
Baseline characteristics by contraceptive method.
| ENG implant (n=130) | LNG-IUS (n=130) | DMPA (n=67) | Copper IUD (n=100) | p-value | |||||
|---|---|---|---|---|---|---|---|---|---|
| Mean | SD | Mean | SD | Mean | SD | Mean | SD | ||
| 24.4 | 5.6 | 26.7 | 5.1 | 25.2 | 5.8 | 27.9 | 6.0 | <0.01 | |
| Baseline Weight (kg) | 76.7 | 20.3 | 81.5 | 22.9 | 69.5 | 20.8 | 76.7 | 20.3 | 0.01 |
| Baseline BMI (m2/kg) | 28.6 | 7.3 | 30.3 | 8.3 | 26.2 | 7.1 | 26.9 | 6.7 | <0.01 |
| N | % | N | % | N | % | N | % | ||
| Baseline BMI (m2/kg) | 0.004 | ||||||||
| Normal (<25) | 41 | 31.5 | 53 | 53.0 | 46 | 35.4 | 36 | 53.7 | |
| Overweight (25-29) | 34 | 26.2 | 18 | 18.0 | 39 | 30.0 | 10 | 14.9 | |
| Obese (>30) | 55 | 42.3 | 29 | 29.0 | 45 | 34.6 | 21 | 31.3 | |
| Race | <0.01 | ||||||||
| Black | 79 | 60.8 | 76 | 58.5 | 47 | 70.1 | 33 | 33.0 | |
| White | 47 | 36.2 | 50 | 38.5 | 14 | 20.9 | 60 | 60.3 | |
| Others | 4 | 3.1 | 4 | 3.1 | 6 | 9.0 | 7 | 7.0 | |
| Hispanic | 4 | 3.1 | 1 | 0.8 | 2 | 3.0 | 5 | 5.0 | 0.25 |
| Low SES* | 74 | 56.9 | 77 | 59.2 | 44 | 65.7 | 51 | 51.0 | 0.29 |
| Parity | 0.39 | ||||||||
| 0 | 64 | 49.2 | 53 | 40.8 | 29 | 43.3 | 50 | 50.0 | |
| 1 | 32 | 24.6 | 38 | 29.2 | 24 | 35.8 | 22 | 22.0 | |
| 2+ | 34 | 26.2 | 39 | 30.0 | 14 | 20.9 | 28 | 28.0 | |
| Education | <0.01 | ||||||||
| High school or less | 52 | 40.0 | 26 | 20.0 | 21 | 31.3 | 12 | 12.0 | |
| Some college | 43 | 33.1 | 55 | 42.3 | 34 | 50.7 | 40 | 40.0 | |
| College/Graduate school | 35 | 26.9 | 49 | 37.7 | 12 | 17.9 | 48 | 48.0 | |
*
Low SES defined as current receipt of public assistance or reported difficulty paying for transportation, housing, medical expenses or food in past 12 months
ENG – etonogestrel; LNG-IUS – levonorgestrel intrauterine system; DMPA – depot medroxyprogesterone acetate; IUD – intrauterine device; BMI – body mass index