Characteristics of the study sample according to duration of full breastfeeding in infancy, DONALD Study (n = 125 women, 108 men)a.

aData are frequencies (%) or medians (25th percentile; 75th percentile). Abbreviations used: DONALD, Dortmund Nutritional and Anthropometric Longitudinally Designed; AGA, appropriate-for-gestational age. Missing values: n = 1 for firstborn status.bTest for differences between breastfeeding groups based on the Chisquare-test for categorical and the Kruskal Wallis-Test for continuous variables.cAccording to [34].