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Table 2 Univariate and multivariate associations of reproductive history and lifestyle factors with binge drinking in early pregnancy, n = 3,238

From: Alcohol consumption and binge drinking in early pregnancy. A cross-sectional study with data from the Copenhagen Pregnancy Cohort

Binge drinking Yes, No, crude OR ajusted ORa
n  (%) n  (%) 95 % Cl
Parity
 Nullipara 820 (42) 1140 (58) Ref. Ref.
 Multipara 314 (25) 964 (75) 0.45 0.50 (0.39-0.62)
Missing data: 0     
Previous miscarriages
 Yes 247 (38) 407 (62) 1.16 0.81 (0.63-1.03)
 No 887 (34) 1697 (66) Ref. Ref.
Missing data: 0     
Time to pregnancy, months
 0-2 676 (40) 1032 (60) Ref. Ref.
 3-11 338 (36) 597 (64) 0.86 1.00 (0.79-1.26)
 ≥12 77 (18) 351 (82) 0.34 1.03 (0.68-1.57)
Missing data: 167     
Pregnancy planning
 Very planned 362 (25) 1100 (75) Ref. Ref.
 Fairly planned 386 (44) 499 (56) 2.35 1.78 (1.40-2.25)
 Neither planned nor unplanned 214 (44) 272 (56) 2.39 2.74 (2.01-3.73)
 Fairly unplanned 62 (53) 54 (47) 3.49 3.02 (1.78-5.10)
 Very unplanned Missing data: 155 66 (49) 68 (51) 2.95 2.87 (1.70-4.84)
Assisted reproductive technology (ART)
 Yes 32 (8) 370 (92) 0.13 0.12 (0.07-0.21)
 No 1051 (39) 1621 (61) Ref. Ref.
 Missing data: 164     
Exercise
 Yes 760 (38) 1269 (62) 1.53 1.12 (0.89-1.43)
 No 242 (28) 617 (72) Ref. Ref.
 Missing data: 350     
Alcohol before pregnancy, no of units/week
 0 96 (10) 864 (90) Ref. Ref.
 1 169 (29) 411 (71) 3.70 4.48 (3.14-6.40)
 2-7 727 (48) 780 (52) 8.39 10.23 (7.44-14.06)
 ≥8 135 (76) 43 (24) 28.26 33.18 (19.53-56.36)
Missing data: 13     
Smoking before pregnancy
 No 951 (33) 1943 (67) Ref. Ref.
 Yes 167 (54) 142 (46) 2.40 2.24 (1.59-3.15)
 Missing data: 230     
  1. aAdjusted for sociodemographic variable: age, education and occupation