Table 2.
Unadjusted | Adjusted for | ||||||
---|---|---|---|---|---|---|---|
Maternal characteristics | Pregnancy characteristics | Medical interventions | Health care setting | All | % Change in OR: unadjusted vs adjusted for all | ||
Region | |||||||
Amsterdama | 1.02 (0.92-1.13) | 1.12 (1.01-1.24) | 1.08 (0.96-1.20) | 1.02 (0.92-1.13) | 1.00 (0.91-1.10) | 1.05 (0.94-1.17) | 3 |
Rotterdama | 0.94 (0.85-1.04) | 1.05 (0.94-1.17) | 0.97 (0.86-1.08) | 0.91 (0.82-1.02) | 0.86 (0.78-0.94) | 0.90 (0.80-1.01) | −5 |
The Haguea | 1.00 (0.89-1.12) | 1.04 (0.93-1.16) | 0.99 (0.88-1.12) | 0.91 (0.81-1.03) | 0.91 (0.82-1.02) | 0.84 (0.74-0.94) | −20 |
Utrechta | 0.89 (0.82-0.97) | 0.92 (0.85-1.00) | 0.94 (0.86-1.02) | 1.00 (0.91-1.10) | 0.89 (0.82-0.96) | 1.02 (0.92-1.13) | 12 |
Groningen | 0.80 ( 0.69-0.92) | 0.83 (0.72-0.96) | 0.77 (0.66-0.90) | 0.73 (0.63-0.84) | 0.75 (0.66-0.86) | 0.71 (0.61-0.82) | −13 |
Friesland | 0.88 (0.76-1.03) | 0.91 (0.79-1.06) | 0.78 (0.66-0.91) | 0.73 (0.63-0.85) | 0.86 (0.75-0.98) | 0.70 (0.60-0.82) | −26 |
Drente | 0.83 (0.72-0.95) | 0.85 (0.74-0.97) | 0.78 (0.67-0.90) | 0.73 (0.63-0.83) | 0.80 (0.70-0.90) | 0.71 (0.62-0.82) | −16 |
Overijssel | 0.91 (0.82-1.01) | 0.92 (0.93-1.03) | 0.84 (0.74-0.94) | 0.81 (0.73-0.91) | 0.92 (0.83-1.01) | 0.83 (0.74-0.93) | −10 |
Gelderland | 1.01 (0.93-1.08) | 1.02 (0.94-1.09) | 0.95 (0.88-1.03) | 0.92 (0.85-1.00) | 1.02 (0.95-1.09) | 0.92 (0.85-1.01) | −9 |
Utrecht | Ref | Ref | Ref | Ref | Ref | Ref | |
Noord Holland | 1.10 (1.01-1.21) | 1.12 (1.02-1.22) | 1.06 (0.97-1.17) | 1.02 (0.93-1.12) | 1.08 (1.00-1.18) | 0.98 (0.89-1.08) | −13 |
Zuid Holland | 1.05 (0.96-1.15) | 1.07 (0.98-1.16) | 1.03 (0.94-1.14) | 0.96 (0.88-1.05) | 0.99 (0.91-1.07) | 0.89 (0.81-0.98) | −18 |
Zeeland | 1.05 (0.87-1.26) | 1.07 (0.89-1.28) | 0.96 (0.79-1.16) | 0.98 (0.81-1.18) | 0.94 (0.80-1.12) | 0.88 (0.73-1.07) | −19 |
Noord Brabant | 1.03 (0.94-1.13) | 1.04 (0.95-1.14) | 1.02 (0.92-1.12) | 0.95 (0.86-1.04) | 1.02 (0.94-1.11) | 0.97 (0.88-1.06) | −7 |
Limburg | 1.04 (0.92-1.17) | 1.05 (0.93-1.18) | 1.00 (0.88-1.14) | 0.90 (0.80-1.02) | 0.97 (0.87-1.08) | 0.86 (0.76-0.98) | −20 |
Flevoland | 1.07 (0.94-1.23) | 1.10 (0.96-1.26) | 0.93 (0.80-1.08) | 0.93 (0.81-1.07) | 1.05 (0.93-1.20) | 0.87 (0.74-1.01) | −24 |
aCity.
Level used was the unique code for each hospital and community midwife practice.
Maternal characteristics: Age, Parity, Ethnicity, SES.
Pregnancy characteristics: Singleton pregnancy, Gestational age, Birth weight, Pre-eclampsia, Perinatal Death.
Medical interventions: Induction of labor, Mode of delivery, Perineal laceration, Placental removal.
Health care setting: Place of delivery.