Table 4.
Predictors of ring ratings after one-month of use (N = 254 visits)
| N (%) | βa | 95% CI | p value | |
|---|---|---|---|---|
| Baseline participant characteristics | ||||
| Age | ||||
| 18–24 | 171 (67.3) | Ref | ||
| 25–30 | 83 (32.7) | 0.25 | − 0.10, 0.61 | 0.165 |
| Site | ||||
| South Africa | 127 (50.0) | Ref | ||
| Kenya | 127 (50.0) | − 0.32 | − 0.66, 0.01 | 0.058 |
| Married or cohabiting | 66 (26.0) | − 0.32 | − 0.81, 0.17 | 0.204 |
| Ever pregnant | 201 (79.1) | − 0.02 | − 0.45, 0.41 | 0.204 |
| Completed secondary school | 133 (52.4) | − 0.30 | − 0.66, 0.06 | 0.099 |
| Earns an income | 80 (31.6) | 0.15 | − 0.26, 0.56 | 0.477 |
| Who she lives with | ||||
| Parents or grandparents | 129 (50.8) | Ref | ||
| Husband/boyfriend | 69 (27.2) | − 0.40 | − 0.94, 0.15 | 0.151 |
| Other | 56 (22.1) | − 0.41 | − 0.87, 0.06 | 0.085 |
| Food insecurity | ||||
| Never | 116 (45.7) | Ref | ||
| Rarely or sometimes | 100 (39.4) | 0.19 | − 0.21, 0.58 | 0.351 |
| Often | 38 (15.0) | 0.47 | − 0.03, 0.97 | 0.066 |
| Has privacy in the home | 209 (82.6) | 0.39 | − 0.05, 0.84 | 0.085 |
| Ever used IUD or implant | 98 (38.6) | 0.25 | − 0.1, 0.59 | 0.157 |
| Any vaginal insertion, past 3 months | 166 (65.4) | − 0.20 | − 0.56, 0.16 | 0.279 |
| Sexual behavior | ||||
| # sex acts, past month (mean, SD) | 4.39 (4.8) | 0.04 | 0.00, 0.07 | 0.025 |
| # sex partners, past month | ||||
| 0 or 1 | 232 (91.3) | Ref | ||
| > 1 | 22 (8.7) | 0.26 | − 0.35, 0.87 | 0.403 |
| Product attributes | ||||
| Reports the following attribute as acceptable (vs. unacceptable) | ||||
| Product look | 169 (66.5) | 1.36 | 1.02, 1.70 | < 0.001 |
| Ease of use | 189 (74.4) | 1.81 | 1.47, 2.14 | < 0.001 |
| Interference with normal activities | 186 (73.2) | 1.45 | 1.11, 1.79 | < 0.001 |
| Ring size | 156 (61.4) | 0.80 | 0.46, 1.14 | < 0.001 |
| Inserting the ring | 162 (63.8) | 0.78 | 0.41, 1.14 | < 0.001 |
| Removing the ring | 179 (72.5) | 0.53 | 0.12, 0.94 | 0.011 |
| How the ring felt during sex | 142 (55.9) | 1.36 | 1.01, 1.7 | < 0.001 |
| How the ring felt to partner during sex | 151 (59.7) | 1.12 | 0.74, 1.49 | < 0.001 |
| How the ring felt during menses | 137 (53.9) | 0.93 | 0.52, 1.34 | < 0.001 |
| Leaving in ring for entire month | 180 (71.7) | 1.68 | 1.35, 2.00 | < 0.001 |
| How the ring felt in hands | 156 (61.7) | 0.58 | 0.24, 0.93 | 0.001 |
| Possible to use without partner knowledge | 159 (62.6) | 0.49 | 0.14, 0.84 | 0.006 |
| Possible to use without family knowledge | 204 (80.3) | − 0.01 | − 0.45, 0.44 | 0.981 |
aAdjusted for age, study site (South Africa vs. Kenya), and randomization sequence