Table 3.
Univariate and multivariable analysis of at least one pregnancy occurrence
| Variable | Univariate analysis of at least one pregnancy | Multivariable analysis | ||||||
|---|---|---|---|---|---|---|---|---|
| N | n | (%) | Crude OR (95%CI) | P | Adjusted OR (95%CI) | P | N 2 | |
| Place of residence (cultural area) | 481 | |||||||
| Fang-Beti | 224 | 45 | 20.1 | 1 | ||||
| Sawa | 160 | 33 | 20.6 | 1.03 (0.62–1.71) | 0.898 | |||
| Grassfield | 97 | 23 | 23.7 | 1.24 (0.69–2.18) | 0.466 | |||
| Age (years) | ||||||||
| ≤ 24 | 295 | 72 | 24.4 | 1 | 1 | |||
| ≥ 25 | 186 | 29 | 15.6 | 0.57 (0.35–0.92) | 0.022 | 0.49 (0.29–0.83) | 0.008** | |
| Cohabiting with sexual partner | ||||||||
| No | 443 | 95 | 21.4 | 1 | ||||
| Yes | 38 | 6 | 15.8 | 0.69 (0.28–1.70) | 0.414 | |||
| Education | ||||||||
| Elementary and under | 95 | 19 | 20.0 | 1 | ||||
| Secondary | 308 | 67 | 21.8 | 1.11 (0.63–1.97) | 0.715 | |||
| Tertiary | 78 | 15 | 19.2 | 0.95 (0.45–2.02) | 0.899 | |||
| A source of income other than prostitution | ||||||||
| No | 307 | 69 | 22.5 | 1 | ||||
| Yes | 174 | 32 | 18.4 | 0.78 (0.90–1.24) | 0.291 | |||
| Affiliation with a sex workers’ association | ||||||||
| No | 248 | 43 | 17.3 | 1 | 1 | |||
| Yes | 233 | 58 | 24.9 | 1.58 (1.01–2.46) | 0.043 | 1.89 (1.14–3.12) | 0.013* | |
| People close to you know about your FSW status | ||||||||
| No | 247 | 48 | 19.4 | 1 | ||||
| Yes | 234 | 53 | 22.6 | 1.21 (0.78–1.88) | 0.387 | |||
| HIV test within the last 12 months | ||||||||
| No | 23 | 4 | 17.4 | 1 | ||||
| Yes | 458 | 97 | 21.2 | 1.28 (0.42–3.84) | 0.664 | |||
| The intention to become pregnant in the previous 12 months | ||||||||
| No | 324 | 34 | 10.5 | 1 | 1 | |||
| Yes | 157 | 67 | 42.7 | 6.35 (3.95–10.22) | < 0.001 | 7.65 (4.56–12.75) | < 0.001** | |
| Use of at least one modern contraceptive method over the last 12 months (a) | ||||||||
| No | 185 | 35 | 18.9 | 1. | 1 | |||
| Yes, non-barrier method (IUD, Pills, implants, injectables) | 101 | 22 | 21.8 | 1.19 (0.66–2.17) | 0.563 | 2.26 (1.14–4.49) | 0.02* | |
| Yes, barrier method (condom) | 195 | 44 | 22.6 | 1.25 (0.76–2.05) | 0.382 | 2.17 (1.22–3.87) | 0.009** | |
| Sexual intercourse while intoxicated with psychoactive substances or alcohol (a) | ||||||||
| No | 172 | 31 | 18.0 | 1 | ||||
| Yes | 309 | 70 | 22.7 | 1.33 (0.83–2.13) | 0.233 | |||
| One or more symptoms of STIs over the past 12 months | ||||||||
| No | 131 | 21 | 16.0 | 1 | ||||
| Yes | 350 | 80 | 22.9 | 1.55 (0.91–2.63) | 0.104 | |||
| The abuse of at least one PAS over the past 12 months | ||||||||
| No | 417 | 82 | 19.7 | 1 | 1 | |||
| Yes | 64 | 19 | 29.7 | 1.73 (0.96–3.11) | 0.069 | 1.91 (1.002–3.65) | 0.049* | |
| Alcohol consumption | ||||||||
| No | 88 | 19 | 21.6 | 1 | ||||
| Yes | 383 | 82 | 20.9 | 0.96 (0.54–1.68) | 0.880 | |||
N total number of subjects include in the univariate analysis, n number of subjects in category, % percentage, p significance, 95%CI 95% confidence interval, N2 total number of subjects include in the multivariable analysis, (a) a priori factor
** < 1%
* < 5%