Stratification variable | Chinese | Vietnamese | Â | Taiwanese | |
---|---|---|---|---|---|
 | Unadjusted | Adjusted | Unadjusted | Adjusted | Reference |
Maternal age | |||||
   Aged <20, n = 11390 | 0.70(0.08, 5.79) | 0.84(0.10, 7.27) | 0.74(0.65, 0.84) | 0.79(0.64, 0.98 | 1 |
   Aged 20-35, n = 337562 | 0.76(0.74, 0.79) | 0.86(0.83, 0.90) | 0.50(0.48, 0.52) | 0.57(0.54, 0.59) | 1 |
   Aged >35, n = 43294 | 0.73(0.66, 0.82) | 1.06(0.94, 1.21) | 0.80(0.64, 0.99 | 1.23(0.96, 1.60) | 1 |
Paternal age (y/o) | Â | Â | Â | Â | Â |
   <25, n = 22270 | 0.93(0.65, 1.33) | 0.97(0.66, 1.43) | 0.73(0.52, 1.03) | 0.79(0.54, 1.14) | 1 |
   25-35, n = 229915 | 0.74(0.70, 0.78) | 0.86(0.81, 0.91) | 0.47(0.44, 0.50) | 0.57(0.53, 0.61) | 1 |
   >35, n = 113639 | 0.60(0.57, 0.62) | 0.89(0.84, 0.94) | 0.37(0.35, 0.38) | 0.59(0.56, 0.62) | 1 |
History of previous cesarean | |||||
   Yes, n = 55480 | 0.80(0.65, 0.98) | 0.78(0.62, 0.96) | 0.65(0.53, 0.81) | 0.61(0.49, 0.77) | 1 |
   No, n = 336766 | 0.84(0.80, 0.87) | 0.89(0.85, 0.92) | 0.54(0.52, 0.56) | 0.59(0.57, 0.62) | 1 |
Urbanization | |||||
   Urban, n = 285771 | 0.74(0.72, 0.77) | 0.88(0.85, 0.92) | 0.47(0.45, 0.49) | 0.57(0.56, 0.62) | 1 |
   Suburban, n = 61117 | 0.78(0.72, 0.85) | 0.90(0.81, 0.99) | 0.49(0.45, 0.53) | 0.61(0.56, 0.67) | 1 |
   Rural, n = 45359 | 0.72(0.65, 0.79) | 0.80(0.71, 0.90) | 0.46(0.43, 0.50) | 0.59(0.53, 0.65) | 1 |
Birthweight | |||||
   Birthweight <1SD, n = 48350 | 0.76(0.68, 0.85) | 0.91(0.80, 1.03 | 0.50(0.46, 0.55) | 0.69(0.62, 0.77) | 1 |
   Birthweight ± 1SD, n = 291608 | 074(0.71, 0.77) | 0.86(0.82, 0.90) | 0.46(0.44, 0.48) | 0.57(0.54, 0.60) | 1 |
   Birthweight > 1SD, n = 52288 | 0.69(0.64, 0.74) | 0.86(0.79, 0.93) | 0.50(0.45, 0.54) | 0.66(0.59, 0.73) | 1 |
Institutional setting | |||||
   Clinic, n = 129252 | 0.74(0.70, 0.78) | 0.84(0.79, 0.90) | 0.44(0.42, 0.47) | 0.58(0.54, 0.62) | 1 |
   Hospital, n = 262994 | 0.69(0.64, 0.74) | 0.86(0.79, 0.93) | 0.50(0.46, 0.54) | 0.66(0.59, 0.73) | 1 |