Figure 2.

Gain‐outcome graph of weight gain and cognition. Each row indicates a study result. The label on the vertical axis is the name of the study. Age is on the horizontal axis. The bar in each row codes the period in which weight gain occurred. The half‐open circle indicates the age at which the outcome was measured, and the label describes the type of outcome. The number of children in the study is printed in the bar. A red bar indicates a significant positive association. A grey bar indicates no significant association.