Table 4.

 Unadjusted and adjusted risk ratios (or odds ratios*) (95% CI) for health behaviours among immigrants from ethnic minority groups, for every five years spent in UK

	Unadjusted	Adjusted†
Smoking during pregnancy	1.03 (0.87 to 1.22)	1.31 (1.04 to 1.66)
Alcohol consumption during pregnancy	1.01 (0.89 to 1.15)	1.00 (0.83 to 1.22)
Initiation of breast feeding	1.00 (0.98 to 1.02)	1.00 (0.98 to 1.01)
Breast feeding for at least 4 months	0.99 (0.94 to 1.03)	0.95 (0.90 to 1.00)

*Odds ratios for smoking and alcohol consumption during pregnancy; rate ratios for initiation of breast feeding and breast feeding for at least 4 months.

†Adjusted for ethnic group, socioeconomic circumstances, family income, highest academic qualification, single motherhood, age at cohort birth, parity.