Figure 1. Mean z-scores for weight from birth to 24 months and at 4–5 years, according to WHO 2006 Growth Standard (WHO 2006) or the British 1990 Growth Reference (UK 1990) for the Gateshead Millennium Baby Study (GMS) and the Children in Focus sub-cohort of the Avon Longitudinal Study of Parents and Children (ALSPAC). Dotted lines in each panel indicate the time periods with less density of measurements.
