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Table 3 Perinatal outcomes according to alcohol intake peri-conceptionally

From: Prevalence, predictors and perinatal outcomes of peri-conceptional alcohol exposure - retrospective cohort study in an urban obstetric population in Ireland

Alcohol intakei

Never

n = 11613 (%)

Low (0-5 units)

n = 43455 (%)

Moderate (6 - 20 units)

n = 6059 (%)

High (>20 units)

n = 114 (%)

Gestational age (weeks), median (IQR)

39.9 (38.9 - 40.9)

40.1 (39.1 - 41.0)

40.1 (39.3 - 41.1)

40.1 (39.0 - 41.4)

Birth weight (grams), median (IQR)

3420 (3080 - 3765)

3520 (3175 - 3850)

3490 (3150 - 3810)

3345 (2865 - 3729)

Preterm birth <37 weeks

811 (7.0)

2215 (5.1)

304 (5.0)

13 (11.5)

Very preterm birth <32 weeks

161 (1.4)

438 (1.0)

63 (1.1)

6 (5.3)

Low birth weight <2500 g

619 (5.4)

1766 (4.1)

268 (4.5)

12 (10.7)

Very low birth weight <1000 g

51 (0.4)

162 (0.4%)

27 (0.5)

2 (0.8)

Birth weight <10th centile

1622 (14.2)

5985 (14.0)

906 (15.2)

35 (31.0)

Male infant

5802 (50.8)

21813 (51.1)

3085 (51.7)

60 (53.1)

Perinatal death

97 (0.8)

313 (0.7)

47 (0.8)

2 (1.8)

Apgar score <3 at 1 minute

140 (1.2)

417 (1.0)

68 (1.1)

2 (1.8)

Apgar score <7 at 5 minutes

154 (1.3)

443 (1.0)

71 (1.2)

2 (1.8)

Admitted to neonatal unit

1799 (15.7)

6100 (14.3)

897 (15.0)

23 (20.4)

Congenital abnormality (any)

373 (3.3)

1192 (2.8)

197 (3.3)

3 (2.7)

Aneuploidy (Trisomy 21/13/18, XO)

13 (0.1)

57 (0.1)

6 (0.1)

1 (0.9)

Fetal Alcohol syndrome

0 (0.0)

1 (0.0)

1 (0.0)

1 (0.9)

Dysmorphic features (unclassified)

8 (0.1)

30 (0.1)

5 (0.1)

0 (0.0)

  1. i Reference category for all comparisons - alcohol intake response "Never"