Table 3

Comparison of daily alcohol consumption for each trimester of pregnancy (method 1) and the composite measure of maternal alcohol consumption

Daily consumption averaged within trimestersPercentage of women in each averaged alcohol group (%)
LowModerateBinge <weeklyBinge 1–2×/weekHeavy
Trimester 1
 <1 std drink/day71.424.03.41.20.0
 1 or more std drinks/day0.00.00.029.470.6
Trimester 2
 <1 std drink/day79.018.81.60.60.0
 1 or more std drinks/day0.00.00.015.484.6
Trimester 3
 <1 std drink/day79.419.11.20.30.0
 1 or more std drinks/day0.00.00.013.886.3
Daily consumption averaged within trimestersPercentage of women in each composite* alcohol group (%)
LowModerateBinge <weeklyBinge 1–2×/weekHeavy
Trimester 1
 <1 std drink/day100.0100.0100.032.80.0
 1 or more std drinks/day0.00.00.067.2100.0
Trimester 2
 <1 std drink/day100.0100.0100.050.00.0
 1 or more std drinks/day0.00.00.050.0100.0
Trimester 3
 <1 std drink/day100.0100.0100.035.30.0
 1 or more std drinks/day0.00.00.064.7100.0
  • * “Composite” method using quantity, frequency and dose of alcohol per occasion.