Difference in mean birth weight (g (95% CI)) between South Asian offspring of women who were first generation migrants and those born in England and Wales, adjusted for potential confounders, live singleton births, born in marriage, England and Wales 2005–2006 (N=461 655)
| Ethnicity | Model 1 | Model 2 | Model 3 | Model 4 | ||||
| Bangladeshi | 57 | (34 to 80) | 58 | (39 to 77) | 32 | (10 to 55) | 28 | (10 to 46) |
| Indian | 38 | (24 to 52) | 18 | (7 to 29) | 49 | (36 to 63) | 31 | (20 to 42) |
| Pakistani | 47 | (36 to 58) | 30 | (22 to 39) | 40 | (29 to 50) | 21 | (12 to 29) |
Note: this table includes only live singleton births of known birth weight and known gestational age born in marriage.
The estimates in each cell are estimated birth weight of offspring of first generation migrant mothers minus that of second generation migrant mothers. For each model, the three contrasts were derived from a single regression model in which all ethnic groups were included as described in Methods.
Model 1—Adjusted for sex.
Model 2—Adjusted for sex and gestational age.
Model 3—Adjusted for sex, number of previous live and stillborn deliveries and maternal age.
Model 4—Model 3 plus gestational age.