Table 2. Predictors of unintended pregnancy during 12-months follow-up among 386 Kenyan female sex workers who did not report an intention to become pregnant.
| Variable | Proportion of FSWs with unintended pregnancy row, %(n/N) | Crude odds ratio (95%CI) | Adjusted odds ratio (95%CI) | P |
|---|---|---|---|---|
| Socio-demographic and sex work characteristics | ||||
| Age group, years | 0.008 | |||
| ≤24 years | 31.4 (59/188) | 3.5 (1.6–7.3) | 3.0 (1.4–6.5) | |
| 25–29 years | 22.7 (25/110) | 2.2 (1.0–5.0) | 2.5 (1.1–5.8) | |
| 30 years and older | 11.6 (10/86) | 1.0 | 1.0 | |
| Religion | ||||
| Catholic | 16.7 (16/96) | 1.0 | 1.0 | |
| Protestant or other | 26.9 (42/156) | 1.8 (1.0–3.5) | 1.9 (0.9–3.7) | 0.071 |
| Muslim | 26.9 (36/134) | 1.8 (0.9–3.6) | 1.8 (0.9–3.7) | 0.087 |
| Highest education level | – | 0.58 | ||
| None or primary incomplete | 26.1 (43/165) | 1.0 | ||
| Primary school | 25.5 (27/106) | 1.0 (0.6–1.7) | ||
| Secondary or tertiary level | 20.9 (24/115) | 0.7 (0.4–1.3) | ||
| Sex work duration | – | 0.42 | ||
| ≤2 years duration | 27.4 (34/124) | 1.0 | ||
| 3 or 4 years duration | 26.3 (26/99) | 0.9 (0.5–1.7) | ||
| 5 or more years duration | 21.1 (34/161) | 0.7 (0.4–1.2) | ||
| Part-time sex work | 0.37 | |||
| No (full-time) | 27.5 (53/193) | 1.0 | 1.0 | |
| Yes | 21.2 (41/193) | 0.7 (0.4–1.1) | 0.8 (0.5–1.3) | |
| Weekly income from sex work | ||||
| ≤500 KShs | 19.2 (18/94) | 1.0 | 1.0 | |
| 501–1000 | 18.6 (22/118) | 1.0 (0.5–1.9) | 1.0 (0.5–2.0) | 0.96 |
| 1001–2000 | 35.4 (35/99) | 2.3 (1.2–4.5) | 2.4 (1.2–4.8) | 0.017 |
| >2000 | 25.0 (18/72) | 1.4 (0.7–3.0) | 1.3 (0.6–3.0) | 0.49 |
| Currently has emotional partner | 0.045 | |||
| No | 16.5 (18/109) | 1.0 | 1.0 | |
| Yes | 27.5 (76/276) | 1.9 (1.1–3.4) | 1.9 (1.0–3.5) | |
| Level of control in relationship with emotional partner | – | 0.80 | ||
| High (score 37–48) | 28.9 (13/45) | 1.0 | ||
| Medium (score 25–36) | 25.2 (32/127) | 0.8 (0.4–1.8) | ||
| Low (score 12–24) | 28.7 (29/101) | 1.0 (0.5–2.2) | ||
| Reproductive characteristics | ||||
| Contraception use at baseline¥ | ||||
| Modern contraceptive, excl only condom | 15.6 (28/180) | 1.0 | 1.0 | |
| Male or female condoms alone | 31.7 (60/189) | 2.5 (1.5–4.2) | 2.7 (1.6–4.7) | <0.001 |
| None or traditional method only | 31.3 (5/16) | 2.5 (0.8–7.7) | 2.9 (0.8–9.9) | 0.096 |
| Number of live children | 0.92 | |||
| 0 | 32.4 (24/74) | 1.0 | 1.0 | |
| ≥1 | 22.4 (70/312) | 0.6 (0.3–1.1) | 1.0 (0.5–2.0) | |
| Lifetime abortion | – | 0.94 | ||
| No | 24.4 (75/307) | 1.0 | ||
| Yes | 24.1 (19/79) | 1.0 (0.5–1.7) | ||
| Other characteristics | ||||
| Alcohol drinking pattern | – | 0.34 | ||
| Alcohol abstinence | 23.9 (34/142) | 1.0 | ||
| Low-risk drinking | 23.6 (34/144) | 1.0 (0.6–1.7) | ||
| Hazardous drinking | 31.3 (21/67) | 1.5 (0.8–2.8) | ||
| Harmful drinking or dependence | 15.2 (5/33) | 0.6 (0.2–1.6) | ||
Values for the predictor variables are from participants at baseline.
¥Current modern contraceptive methods consist of oral contraceptives, implant, injectables, intra-uterine devices (IUD), male and female condoms (self-reported consistent use with all partners over the past 3 months), sterilization, Lactational Amenorrhoea Method, and emergency contraceptives.