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Table 4 Neonatal death and infant death according to mode of delivery by time period (cohort effect)

From: Trial of labour after caesarean section and the risk of neonatal and infant death: a nationwide cohort study

Mode of delivery 1st and 2nd births

Neonatal death (≤28 days) n = 95 in entire cohort 1982–2010

aModel 1 AOR (95% CI) (35 deaths)

bModel 2 AOR (95% CI) (34 deaths)

cModel 3 AOR (95% CI) (26 deaths)

CS – ERCS

Ref

Ref

Ref

CS – TOLAC

3.89 (1.33, 11.39)

2.87 (0.85, 9.70)

1.01 (0.44, 2.31)

Mode of delivery 1st and 2nd birth

Infant death (≤365 days) n = 171 in entire cohort 1982–2010

aModel 1 AOR (95% CI) (69 deaths)

bModel 2 AOR (95% CI) (64 deaths)

cModel 3 AOR (95% CI) (38 deaths)

CS – ERCS

Ref

Ref

Ref

CS – TOLAC

1.24 (0.70, 2.21)

1.37 (0.70, 2.69)

0.81 (0.42, 1.59)

  1. Data are adjusted odds ratios with 95% confidence intervals. AOR adjusted odds ratio, CI confidence interval, ERCS Elective repeat caesarean section, TOLAC Trial of labour after caesarean
  2. aModel 1: Cohort restricted to first time period (1982–1991, cohort n = 11,698) and adjusted for key covariates in the second birth including maternal age, maternal country of origin, educational attainment, mother and father’s gross income, marital status, infant birthplace and infant birth weight, history of pregnancy loss and birth year
  3. bModel 2: Cohort restricted to second time period (1992–2001, cohort n = 22,060) and adjusted for key covariates as in Model 1
  4. cModel 3: Cohort restricted to last time period (2002–2010, cohort n = 27,868) and adjusted for key covariates as in Model 1