Child growth and development
Data on infant growth (weight and length) and development (the Van Wiechen Scheme [A standard deviation score (SDS) will be calculated for weight and length for every measurement moment. This number indicates the difference with respect to the gender and age-specific average, expressed in standard deviations, enabling comparisons over time and between groups.The Van Wiechen Scheme is the Dutch equivalent of the Bayley scales and is used to measure development in children in a systematic way [