Table 2

Alcohol consumption during pregnancy for measures of alcohol using total dose, dose per occasion and frequency for women who consumed alcohol during pregnancy

Grams* per weekComposite alcohol groups
LowModerateBinge <weeklyBinge 1–2×/weekHeavy
Grams/week
Trimester 1Mean6.216.616.897.3192.5
Median2.58.015.082.0150.0
Minimum0.52.15.050.071.0
Maximum60.067.561.0270.01453.0
Trimester 2Mean6.014.614.792.5161.1
Median2.57.510.668.5120.0
Minimum0.52.15.050.075.0
Maximum60.066.043.3265.0540.0
Trimester 3Mean6.015.215.495.5143.2
Median2.57.613.690.0105.0
Minimum0.53.05.050.074.0
Maximum60.070.037.5265.0540.0
Grams* per occasion(%)(%)(%)(%)(%)
Trimester 1≤1021.2N/A§N/AN/AN/A
11 to 2078.81.6N/AN/A17.6
21 to 49N/A98.4N/AN/A53.7
50+N/AN/A100.0100.028.7
Trimester 2≤1018.7N/AN/AN/AN/A
11 to 2081.31.1N/AN/A18.2
21 to 49N/A98.9N/AN/A59.1
50+N/AN/A100.0100.022.7
Trimester 3≤1018.4N/AN/AN/AN/A
11 to 2081.61.5N/AN/A24.6
21 to 49N/A98.5N/AN/A60.9
50+N/AN/A100.0100.014.5
Frequency per week(%)(%)(%)(%)(%)
Trimester 1<Weekly78.668.6100.0N/AN/A
1–2×/Week18.728.9N/A100.06.5
>2×/Week2.72.5N/AN/A93.5
Trimester 2<Weekly79.873.3100.0N/AN/A
1–2×/Week17.625.1N/A100.0N/A
>2×/Week2.51.6N/AN/A100.0
Trimester 3<Weekly79.970.4100.0N/AN/A
1–2×/Week17.327.6N/A100.01.4
>2×/Week2.82.0N/AN/A98.6
  • * 10 g=1 standard drink in Australia and 50 g/occasion=binge drinking.

  • <Weekly=once every 8–10 weeks up to 1–2 times per month.

  • Moderate group contains women consuming 10 g of alcohol per occasion daily.

  • § N/A, not applicable.