Factor | Crude OR (95% CI) | p-value | Adjusted ORa (95% CI) | p-value |
---|---|---|---|---|
Migration background women: ref = Western | 1 |  | 1 |  |
 Non-Western | 3.64 (1.65–8.03) | 0.01 | 4.41 (1.74–11.17) | 0.002 |
Migration background partner: ref = Western | 1 |  |  |  |
 Non-Western | 2.55 (1.11–5.89) | 0.03 |  |  |
Education women: ref = high | 1 |  | 1 |  |
 Middle | 1.54 (0.64–3.74) | 0.34 | 1.36 (0.50–3.71) | 0.55 |
 Low | 6.93 (2.24–21.47) | 0.001 | 7.81 (2.01–30.27) | 0.003 |
Education partner: ref = high | 1 |  |  |  |
 Middle | 1.46 (0.58–3.65) | 0.42 | ||
 Low | 2.96 (0.92–9.55) | 0.07 | ||
Marital status: ref = married/living together | 1 |  |  |  |
 Single or not living with partner | 2.14 (0.82–5.56) | 0.12 |  |  |
Duration relation: ref =  ≥ 5 years | 1 |  | ||
 0–4 years | 2.13 (0.94–4.81) | 0.07 | ||
Province: ref = Noord-Holland | 1 |  |  |  |
 Zuid-Holland | 0.19 (0.04–0.84) | 0.03 | ||
 Else | 0.37 (0.16–0.89) | 0.03 | ||
Vaginal discharge: ref = no | 1 |  |  |  |
 Yes | 0.37 (0.14–1.00) | 0.05 | ||
Smokingb: ref = both never or not in pregnancy | 1 |  | 1 |  |
 Woman or partner in pregnancy | 1.92 (0.67–5.50) | 0.22 | 1.56 (0.51–4.81) | 0.44 |
 Woman and partner in pregnancy | 3.54 (1.27–9.84) | 0.02 | 2.94 (1.01–8.84) | 0.05 |
Drug use: ref = no never or not during pregnancy | 1 |  |  |  |
 Yes during pregnancy | 3.49 (0.94–12.98) | 0.06 |  |  |
Gestational age at inclusion: ref = first trimester | 1 |  |  |  |
 Second trimester | 0.40 (0.16–1.00) | 0.05 |  |  |
 Third trimester | 0.63 (0.23–1.72) | 0.36 |  |  |
Gestational age at discovery pregnancy: ref = 0–5 weeks | 1 |  |  |  |
 5–10 weeks | 1.89 (0.80–4.48) | 0.15 |  |  |
 ≥ 10 weeks | 5.17 (0.96–27.94) | 0.06 |  |  |
Pregnancy planned: ref = yes | 1 |  |  |  |
 No | 1.76 (0.78–3.98) | 0.17 |  |  |
Current STI, ref = no | 1 |  |  |  |
 Yes, 1 or more | 1.68 (0.21–13.78) | 0.63 |  |  |
History of STI: ref = no | 1 |  |  |  |
 Yes, 1 or more | 2.62 (1.14–6.05) | 0.02 |  |  |