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Table 4 Odds ratios (95% CI) from the full model of SGA and PTB and maternal alcohol intake during pregnancy, categorized by smoking during pregnancy

From: Preterm birth and small for gestational age in relation to alcohol consumption during pregnancy: stronger associations among vulnerable women? results from two large Western-European studies

  ABCD study KiGGS study  
(%) Abstainer Non-daily drinker Daily drinker (%) Abstainer Non-abstainer
N = 3049 N = 1894 N = 295   N = 14089 N = 2012
SGA        
Non-smoker 7.8 1.00 1.17 (0.91, 1.50) 0.76 (0.41, 1.39) 8.1 1.00 1.06 (0.85, 1.33)
Smoker 16.6 1.00 1.00 (0.56, 1.77) 0.77 (0.31, 1.91) 16.6 1.00 0.80 (0.56, 1.14)
PTB        
Non-smoker 4.6 1.00 0.75 (0.55, 1.03) 0.16 (0.04, 0.64) 6.1 1.00 0.80 (0.60, 1.08)
Smoker 6.5 1.00 1.00 (0.42, 2.42) 0.85 (0.22, 3.34) 6.9 1.00 0.56 (0.26, 1.19)
  1. Full Model: adjusted for education, maternal height, parity, BMI, maternal age, ethnicity, maternal distress (in ABCD study only) and hypertension (in ABCD study only).
  2. For all analyses on SGA, parity was excluded, because SGA is corrected for parity by definition.
  3. CI = confidence interval; SGA = small for gestational age; PTB = preterm birth;