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Table 2 Perinatal outcomes according to reported alcohol behaviour at first antenatal visit in pregnancy

From: Behavioural change in relation to alcohol exposure in early pregnancy and impact on perinatal outcomes - a prospective cohort study

Alcohol intake Non-drinker Ex-drinker Current drinker Ex-drinker versus Non-drinker Current drinker versus Non-drinker
n= 708 (%) n= 5649 (%) n= 368 (%) Crude OR (95% CI) Crude OR (95% CI)
Adjusted iOR (95% CI) Adjusted iOR (95% CI)
Preterm birth < 37 weeks 53 (7.5) 345 (6.1) 23 (6.2) 0.79 (0.59-1.07) 0.82 (0.49-1.35)
1.11 (0.75-1.63) 0.56 (0.32-1.12)
Very preterm birth < 32 weeks 11 (1.6) 71 (1.3) 4 (1.1) 0.79 (0.42-1.51) 0.69 (0.22-2.18)
0.87 (0.41-1.84) 0.47 (0.14-1.16)
Low birth weight < 2500g 41 (5.8) 259 (4.6) 22 (6.0) 0.77 (0.55-1.08) 1.02 (0.60-1.74)
0.82 (0.55-1.21) 0.69 (0.39-1.22)
Very low birth weight < 1000g 5 (0.7) 24 (0.4) 3 (0.8) 0.59 (0.23-1.55) 1.14 (0.27-4.79)
0.54 (0.20-1.46) 0.91 (0.20-4.13)
Intrauterine growth restriction ii 91 (12.9) 640 (11.3) 69 (18.8) 0.87 (0.68-1.10) 1.56 (1.11-2.20)*
0.90 (0.68-1.18) 1.23 (0.83-1.83)
Apgar score <3 at 1 minute 8 (1.1) 55 (1.0) 3 (0.8) 0.85 (0.40-1.79) 0.71 (0.19-2.70)
1.12 (0.44-2.89) 0.56 (0.14-2.25)
Apgar score <7 at 5 minutes 6 (0.8) 45 (0.8) 4 (1.1) 0.92 (0.39-2.18) 1.28 (0.36-4.55)
1.12 (0.39-3.22) 0.68 (0.18-2.63)
Admitted to neonatal unit 43 (6.2) 271 (4.8) 20 (5.4) 0.77 (0.55-1.07) 0.92 (0.53-1.60)
0.76 (0.51-1.13) 0.63 (0.35-1.13)
Congenital abnormality (any) 15 (2.1) 46 (0.8) 5 (1.4) 0.37 (0.21-0.81)* 0.63 (0.23-1.74)
0.40 (0.21-0.77)* 0.73 (0.25-2.12)
Perinatal death 5 (0.7) 20 (0.4) 2 (0.5) 0.62 (0.21-1.81) 0.76 (0.15-3.92)
0.87 (0.25-3.02) 0.80 (0.14-4.53)
  1. i Adjusted for maternal age, Irish nationality, unplanned pregnancy, private healthcare, smoker, illicit drug use.
  2. ii Customised birth weight < 10th percentile.
  3. * p<0.05.