Table 1. z-Scores for length/height, weight and body mass index (BMI) from birth according to the WHO 2006 Growth Standard (WHO) or the British 1990 Growth Reference (UK1990) in the ALSPAC and GMS cohorts.
| Age | Numbers | Length/height SDS | Weight SDS | BMI SDS | ||||||||||
| WHO | UK1990 | WHO | UK1990 | WHO | UK1990 | |||||||||
| ALSPAC | GMS | ALSPAC | GMS | ALSPAC | GMS | ALSPAC | GMS | ALSPAC | GMS | ALSPAC | GMS | ALSPAC | GMS | |
| Birth | 1335 | 923 | 0.65 (1.04) | – | 0.04 (1.00) | – | 0.34 (1.01) | 0.17 (1.07) | −0.03 (1.04) | −0.20 (1.09) | 0.00 (0.98) | – | 0.17 (1.00) | – |
| 12 days | – | 806 | – | – | – | – | – | −0.07 (1.00) | – | −0.51 (1.03) | – | – | – | – |
| 6–8 weeks | – | 788 | – | – | – | – | – | −0.17 (0.93) | – | −0.02 (0.99) | – | – | – | – |
| 4 months | 943 | 796 | −0.03 (0.91) | – | −0.05 (0.90) | – | −0.07 (0.90) | 0.01 (0.96) | −0.12 (0.97) | 0.05 (1.03) | −0.07 (0.94) | – | −0.12 (1.29) | – |
| 8 months | 1231 | 601 | 0.15 (0.96) | – | 0.08 (0.96) | – | 0.46 (0.97) | 0.49 (0.94) | 0.10 (1.08) | 0.22 (1.04) | 0.50 (0.96) | – | 0.09 (1.06) | – |
| 1 year | 1164 | 774 | 0.09 (0.95) | – | 0.09 (0.94) | – | 0.65 (0.93) | 0.57 (0.94) | 0.18 (1.05) | 0.14 (1.05) | 0.81 (0.89) | – | 0.19 (1.01) | – |
| 1.5 years | 1088 | – | −0.09 (0.97) | – | 0.02 (0.96) | – | 0.51 (0.91) | – | 0.08 (1.04) | – | 0.81 (0.89) | – | 0.06 (1.03) | – |
| 2 years | 977 | – | −0.14 (0.93) | – | −0.11 (0.93) | – | 0.40 (0.92) | – | 0.15 (1.04) | – | 0.66 (0.93) | – | 0.26 (1.03) | – |
| 4–5 years | 963 | 395* | −0.11 (0.91) | −0.16 (0.93) | 0.08 (0.94) | −0.01 (0.97) | 0.35 (0.90) | 0.49 (0.96) | 0.31 (1.00) | 0.45 (1.03) | 0.63 (0.92) | 0.87 (0.99) | 0.42 (0.99) | 0.66 (0.99) |
Values are mean (SD).
*281 GMS children aged >5 years at school entry measurement were excluded as they could not be compared with WHO.
ALSPAC, Children in Focus sub-cohort of Avon Longitudinal Study of Parents and Children; GMS, Gateshead Millennium Baby Study.