Skip to main content

Table 3 Adjusted odds (95% CI) of overall cesarean, primary cesarean and VBAC in Taiwan, 2006-2007

From: Cesarean and VBAC rates among immigrant vs. native-born women: a retrospective observational study from Taiwan Cesarean delivery and VBAC among immigrant women in Taiwan

  Total cesarean (n = 128,320) Primary cesarean, (n = 53,186) VBAC (n = 2,294)
  OR (95% C.I.) p OR (95% C.I.) p OR (95% C.I.) p
Ethnicity
   Taiwanese*       
   Chinese 0.90(0.86, 0.94) 0.000 0.90 (0.86, 0.94) 0.000 1.25 (1.02, 1.55) 0.033
   Vietnamese 0.59(0.56, 0.61) 0.000 0.58(0.55, 0.61) 0.000 1.58 (1.26, 1.97) 0.000
Parental demographics       
Maternal age
   Aged 20-35*       
   Aged <20 0.84(0.78, 0.91) 0.000 0.85 (0.79, 0.92) 0.000 1.51 (0.88, 2.50) 0.131
   Aged >35 1.46(1.41, 1.52) 0.000 1.49(1.44, 1.54) 0.000 0.89 (0.78, 1.01) 0.062
Paternal age, y/o
   Aged <25*       
   Aged 25-35 1.06(1.02, 1.11) 0.004 1.05((1.00, 1.10) 0.020 0.68 (0.53, 0.88) 0.003
   Aged >35 0.98(0.94, 1.03) 0.429 0.97 (0.93, 1.02) 0.229 0.77 (0.60, 1.01) 0.052
Single 1.04(0.48,2.24) 0.930 0.96 (0.44, 2.08) 0.959 XX
Maternal/Pregnancy factors       
Previous history of cesarean 108.6(103.7, 113.6) 0.000     
Length of gestation
   Term pregnancy*       
   Preterm 1.37(1.31, 1.43) 0.000 1.43(1.37, 1.49) 0.000 1.37 (1.18, 1.59) 0.000
Prolonged
pregnancy
1.94(1.65, 2.28) 0.000 2.00(1.70, 2.36) 0.000 4.00 (1.67, 9.58) 0.002
Urbanization
   Rural*       
   Suburban 1.06(1.02, 11.0) 0.003 1.07 (1.02, 1.10) 0.002 1.06 (0.89, 1.25) 0.540
   Urban 1.21(1.17, 1.25) 0.000 1.23 (1.20, 1.27) 0.000 1.04 (0.91, 1.20) 0.570
Neonatal characteristics       
Male 1.07(1.05, 1.09) 0.000 1.06 (1.05, 1.09) 0.000 0.88 (0.81, 0.96) 0.006
Intermediate birthweight*       
Birthweight <1SD 1.05(1.01, 1.08) 0.004 1.07(1.03, 1.10) 0.000 1.36 (1.19, 1.55) 0.000
Birthweight >1SD 1.77(1.72, 1.81) 0.000 1.81 (1.76, 1.86) 0.000 1.04 (0.91, 1.19) 0.572
Maternal medical complications       
DM 1.23(1.10, 1.38) 0.000 1.25 (1.12, 1.40) 0.000 0.99 (0.65, 1.49) 0.974
Hypertensive 8.0(7.42, 8.63) 0.000 8.04(7.45,8.67) 0.000 0.39 (0.24, 0.62) 0.000
Major Obstetric complication 80.7(76.5,85.2) 0.000 87.6(82.9,92.62) 0.000 0.32(0.27, 0.39) 0.000
Institutional setting
   Birth in clinic*       
   Birth in Hospital 0.68(0.67, 0.70) 0.000 0.68(0.66 0.69) 0.000 2.11 (1.89, 2.35) 0.000
  1. *Reference group
  2. †OR = odds ratio
  3. ‡ VBAC = vaginal birth after cesarean
  4. §Major maternal complication refers to presence of one or more of the following that reasonably justifies a cesarean delivery. It includes dystocia, cephalopelvic disproportion, breech/malpresentation, placenta previa, placental abruption, fetal distress.
  5. XX: No single mothers in the VBAC sample, hence marital status not used in this model.