Figure 1From: Prevention through Activity in Kindergarten Trial (PAKT): A cluster randomised controlled trial to assess the effects of an activity intervention in preschool children Flow diagram of the stratification and randomisation of clusters and individuals. 1) rural area - kindergarten is located in a village with <20,000 inhabitants. 2) urban area - kindergarten is located in a town with ≥20,000 inhabitants.Back to article page