All (N=1434) | White British boys (N=314) | Pakistani boys (N=383) | White British girls (N=328) | Pakistani girls (N=409) | |
---|---|---|---|---|---|
Birth weight (kg) | |||||
Mean (SD) | 3.22 (0.55) | 3.38 (0.59) | 3.19 (0.52) | 3.26 (0.57) | 3.08 (0.51) |
z Score (SD)* | −0.22 (1.21) | 0.00 (1.26) | −0.38 (1.12) | −0.00 (1.28) | −0.40 (1.16) |
Weight at 2 years (kg)† | |||||
Mean (SD) | 12.45 (1.54) | 12.75 (1.50) | 12.81 (1.45) | 12.16 (1.41) | 12.16 (1.66) |
z Score (SD)* | 0.32 (1.01) | 0.29 (1.01) | 0.33 (1.02) | 0.34 (0.98) | 0.32 (1.04) |
Length at 2 years (cm)† | |||||
Mean (SD) | 86.6 (3.4) | 87.3 (3.6) | 87.3 (3.1) | 85.4 (3.4) | 86.4 (3.2) |
z Score (SD)* | −0.04 (1.04) | −0.06 (1.14) | −0.07 (1.00) | −0.20 (1.04) | 0.11 (1.00) |
% Smoked during pregnancy | 18.1 | 37.3 | 3.9 | 33.8 | 3.9 |
% Preterm birth | 5.4 | 7.0 | 4.4 | 5.5 | 4.9 |
Mean maternal height cm (SD) | 161.4 (6.4) | 164.1 (6.1) | 159.7 (5.7) | 163.9 (6.2) | 159.0 (5.9) |
*z Score calculated using the WHO growth standards (http://www.who.int/childgrowth/en/).
†These estimates are based only on infants with a measurement at age 2 years (N=239 for weight and N=185 for length).
Length was not routinely recorded at birth.