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
AgeNumbersLength/height SDSWeight SDSBMI SDS
WHOUK1990WHOUK1990WHOUK1990
ALSPACGMSALSPACGMSALSPACGMSALSPACGMSALSPACGMSALSPACGMSALSPACGMS
Birth13359230.65 (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 days806−0.07 (1.00)−0.51 (1.03)
6–8 weeks788−0.17 (0.93)−0.02 (0.99)
4 months943796−0.03 (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 months12316010.15 (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 year11647740.09 (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 years1088−0.09 (0.97)0.02 (0.96)0.51 (0.91)0.08 (1.04)0.81 (0.89)0.06 (1.03)
2 years977−0.14 (0.93)−0.11 (0.93)0.40 (0.92)0.15 (1.04)0.66 (0.93)0.26 (1.03)
4–5 years963395*−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.