Skip to main content

Table 3 Perinatal outcomes according to units of alcohol intake reported at the 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

Low intake

Excess intake / binge

Low intake versus Non-drinker

Excess intake / binge versus Non-drinker

(0 units)

(1–5 units)

(>5 units)

Crude OR 9(5% CI)

Crude OR (95% CI)

n= 708 (%)

n= 270 (%)

n= 99 (%)

Adjusted iOR (95% CI)

Adjusted iOR (95% CI)

Preterm birth < 37 weeks

53 (7.5)

14 (5.2)

10 (10.2)

0.67 (0.36-1.23)

1.62 (0.76-3.45)

0.51 (0.27-0.96)*

0.83 (0.37-1.82)

Very preterm birth < 32 weeks

11 (1.6)

1 (0.4)

3 (3.0)

0.23 (0.03-1.81)

1.99 (0.55-7.28)

0.17 (0.02-1.35)

1.35 (0.33-5.47)

Low birth weight < 2500g

41 (5.8)

13 (4.8)

9 (9.2)

0.81 (0.43-1.54)

1.62 (0.76-3.45)

0.60 (0.31-1.18)

1.00 (0.44-2.26)

Very low birth weight < 1000g

5 (0.7)

1 (0.4)

2 (2.0)

0.52 (0.06-4.43)

2.89 (0.55-15.09)

0.40 (0.04-3.70)

2.50 (0.41-15.11)

Intrauterine growth restriction ii

91 (12.9)

42 (15.6)

26 (26.5)

1.25 (0.84-1.86)

2.41 (1.47-3.98)*

1.04 (0.68-1.59)

1.43 (0.83-2.49)

Apgar score <3 at 1 minute

8 (1.1)

1 (0.4)

2 (2.0)

0.32 (0.04-2.60)

1.80 (0.38-8.59)

0.30 (0.04-2.50)

1.27 (0.24-6.78)

Apgar score <7 at 5 minutes

6 (0.8)

3 (1.1)

4 (4.0)

1.10 (0.18-2.67)

4.94 (1.37-17.83)*

1.09 (0.11-2.73)

2.34 (0.55-9.90)

Admitted to neonatal unit

43 (6.2)

10 (3.7)

10 (10.2)

0.62 (0.30-1.25)

1.82 (0.88-3.76)

0.47 (0.22-0.97)*

1.30 (0.59-2.85)

Congenital abnormality (any)

15 (2.1)

3 (1.1)

2 (2.0)

0.51 (0.15-1.78)

0.95 (0.21-4.21)

0.63 (0.18-2.28)

1.08 (0.23-5.13)

Perinatal death

5 (0.7)

1 (0.4)

1 (1.0)

0.52 (0.06-4.43)

1.43 (0.17-12.36)

0.61 (0.07-5.61)

1.28 (0.13-12.64)

  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.