Statistical analysis
Sample size calculations were not undertaken for this study. Descriptive
analyses of patient characteristics are presented as median and
interquartile range (IQR: 25th-75thpercentile) for continuous variables or frequencies and percentages for
categorical variables. Weight-for-length z-score categories were defined
using Zanthro software in STATA v14.0. Data were analysed using R
package version 3.4.1.