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Table 1 Effect of a special occasion question on disclosure of binge episodes amongst 1570 women in the AQUA cohort

From: “Did you ever drink more?” A detailed description of pregnant women’s drinking patterns

  

Number

% of cohort (95 % CI)

Binge episodes disclosed as part of:

3 months prior to conception

  

Usual pattern

269

17.1 (15.3–19.1)

Special occasion

327

20.8 (18.8–22.9)

Total

596

37.9

After conception, prior to pregnancy recognitiona

  

Usual pattern

193

12.3 (10.7–14.2)

Special occasion

97

6.2 (5.0–7.5)

Total

290

18.5

  1. aMean (SD) gestational age at pregnancy recognition: 4.9 (1.5) weeks