Study population | Not referred | Referred | ||||
---|---|---|---|---|---|---|
Unadjusted OR (CI) n ≤ 1053a | Adjusted OR (CI) n = 937 | Unadjusted OR (CI) n ≤ 560a | Adjusted OR (CI) n = 502 | Unadjusted OR (CI) n ≤ 493a | Adjusted OR (CI) n = 435 | |
Predisposing variables | ||||||
Age | 0.98 (0.95–1.01) | 0.98 (0.94–1.02) | 0.97 (0.93–1.01) | 0.95 (0.90–1.00) | ||
Level of Educationa | ||||||
Low | 1.00 (ref.) | 1.00 (ref.) | 1.00 (ref.) | |||
Middle | 1.13 (0.70–1.83) | 1.66 (0.74–3.71) | 0.91 (0.49–1.69) | |||
High | 1.06 (0.65–1.73) | 1.47 (0.65–3.31) | 0.91 (0.48–1.71) | |||
Ethnic Backgrounda | ||||||
Dutch | 1.00 (ref.) | 1.00 (ref.) | 1.00 (ref.) | |||
Western Non-Dutch | 0.57 (0.31–1.04) | 0.74 (0.34–1.59) | 0.46 (0.16–1.26) | |||
Non-Western Non-Dutch | 0.78 (0.58–1.01) | 1.03 (0.66–1.59) | 0.58 (0.38–0.88) | |||
Occupationa | ||||||
Unemployed | 1.00 (ref.) | 1.00 (ref.) | 1.00 (ref.) | |||
Employed | 1.03 (0.76–1.41) | 1.07 (0.68–1.69) | 0.99 (0.64–1.52) | |||
Enabling variables | ||||||
Deprived areaa | ||||||
No | 1.00 (ref.) | 1.00 (ref.) | 1.00 (ref.) | 1.00 (ref.) | 1.00 (ref.) | |
Yes | 0.76 (0.52–1.10) | 0.64 (0.42–0.99) | 1.01 (0.58–1.75) | 0.55 (0.33–0.92) | 0.50 (0.27–0.92) | |
Team | ||||||
1 | 1.00 (ref.) | 1.00 (ref.) | 1.00 (ref.) | |||
2 | 0.76 (0.57–1.02) | 0.71 (0.47–1.09) | 0.79 (0.53–1.17) | |||
Year | ||||||
2015 | 1.00 (ref.) | 1.00 (ref.) | 1.00 (ref.) | 1.00 (ref.) | 1.00 (ref.) | |
2016 | 1.34 (1.01–1.79) | 1.56 (1.12–2.18) | 1.07 (0.70–1.62) | 1.64 (1.09–2.46) | 2.42 (1.45–4.05) | |
Need variables | ||||||
Parity | ||||||
Nulliparous | 1.00 (ref.) | 1.00 (ref.) | 1.00 (ref.) | |||
Multiparous | 0.86 (0.73–1.03) | 0.87 (0.66–1.14) | 0.83 (0.66–1.05) | |||
Start of pregnancya | ||||||
Spontaneous | 1.00 (ref.) | 1.00 (ref.) | 1.00 (ref.) | 1.00 (ref.) | ||
Assisted | 1.56 (1.14–2.15) | 1.49 (1.04–2.13) | 1.32 (0.73–2.37) | 1.60 (1.08–2.36) | ||
Duration of getting pregnanta | 1.01 (1.00–1.02) | 1.01 (0.99–1.04) | 1.00 (0.98–1.02) | |||
Attendance general practitioner | ||||||
No | 1.00 (ref.) | 1.00 (ref.) | 1.00 (ref.) | |||
Yes | 1.43 (0.96–2.12) | 1.17 (0.62–2.20) | 1.54 (0.92–2.58) | |||
Attendance Specialist | ||||||
No | 1.00 (ref.) | 1.00 (ref.) | 1.00 (ref.) | |||
Yes | 1.35 (0.99–1.84) | 1.08 (0.67–1.75) | 1.49 (0.98–2.26) | |||
Consultation Obstetriciana | ||||||
No | 1.00 (ref.) | 1.00 (ref.) | 1.00 (ref.) | 1.00 (ref.) | 1.00 (ref.) | 1.00 (ref.) |
Yes | 3.46 (2.50–4.79) | 3.39 (2.37–4.85) | 3.74 (2.26–6.18) | 3.99 (2.35–6.77) | 3.52 (2.28–5.45) | 2.75 (1.66–4.57) |
Psychosocial problemsa | 1.00 (ref.) | 1.00 (ref.) | 1.00 (ref.) | 1.00 (ref.) | ||
No | 1.53 (1.07–2.17) | 1.24 (0.75–2.07) | 1.85 (1.13–3.03) | 1.85 (1.02–3.35) | ||
Yes in the past | 2.69 (1.70–4.25) | 1.28 (0.56–2.93) | 3.85 (2.13–6.93) | 2.99 (1.43–6.25) | ||
Yes at present | ||||||
Sexual or domestic violencea | ||||||
No | 1.00 (ref.) | 1.00 (ref.) | 1.00 (ref.) | 1.00 (ref.) | 1.00 (ref.) | |
Yes | 2.27 (1.55–3.33) | 2.25 (1.44–3.49) | 1.92 (1.06–3.48) | 2.17 (1.11–4.24) | 2.43 (1.46–4.03) | |
Prescribed Drugsa | ||||||
No | 1.00 (ref.) | 1.00 (ref.) | 1.00 (ref.) | |||
Yes | 1.42 (0.89–2.26) | 1.29 (0.59–2.81) | 1.36 (0.75–2.46) | |||
Number of ultrasounds | ||||||
(mean) | 1.18 (1.07–1.31) | 1.18 (1.05–1.33) | 1.09 (0.94–1.27) | 1.27 (1.11–1.46) | 1.38 (1.15–1.65) | |
Health behaviour variables | ||||||
Smokinga | ||||||
No | 1.00 (ref.) | 1.00 (ref.) | 1.00 (ref.) | 1.00 (ref.) | ||
Yes | 1.81 (1.32–2.50) | 1.59 (1.10–2.30) | 1.81 (1.13–2.90) | 1.75 (1.13–2.71) | ||
BMIa | ||||||
Normal weight | 1.00 (ref.) | 1.00 (ref.) | 1.00 (ref.) | 1.00 (ref.) | 1.00 (ref.) | |
Overweight | 1.34 (0.93–1.86) | 1.51 (1.04–2.18) | 1.02 (0.61–1.70) | 1.52 (0.96–2.39) | 1.88 (1.09–3.24) | |
Obese | 0.96 (0.61–1.50) | 0.80 (0.47–1.35) | 0.61 (0.25–1.48) | 1.02 (0.59–1.77) | 0.79 (0.39–1.58) |