Table 2.

Odds ratios (95% CI) and prevalence percentages of SGA and PTB and maternal alcohol intake during pregnancy

	ABCD study			KiGGS study
	Abstainer	Non-daily drinker	Daily drinker	Abstainer	Non-abstainer
	N = 3049	N = 1894	N = 295	N = 14089	N = 2012
SGA
Prevalence	9.0	8.3	6.8	9.5	9.5
Crude Model	1.00	0.94 (0.76, 1.15)	0.72 (0.44, 1.16)	1.00	1.01 (0.84, 1.21)
Full Model	1.00	1.14 (0.91, 1.43)	0.77 (0.47, 1.27)	1.00	0.98 (0.81, 1.19)
PTB
Prevalence	5.5	4.1	1.7	6.5	4.8
Crude Model	1.00	0.73 (0.56, 0.97)	0.30 (0.12, 0.73)	1.00	0.71 (0.54, 0.93)
Full Model	1.00	0.77 (0.58, 1.04)	0.31 (0.13, 0.77)	1.00	0.75 (0.57, 0.99)

Full Model: adjusted for education, smoking during pregnancy, maternal height, parity, BMI, maternal age, ethnicity, maternal distress (in ABCD study only) and hypertension (in ABCD study only).

For all analyses on SGA, parity was excluded, because SGA is corrected for parity by definition.

CI = confidence interval; SGA = small for gestational age; PTB = preterm birth;