Statistical analysis
Cleaning and descriptive data analysis were performed using Stata version 15.0 (StataCorp. 2017. Stata Statistical Software: Release 15. College Station, TX: StataCorp LLC). Comparisons of both explanatory and outcome variables between intervention arms was performed using both Chi-Square tests for categorical variables and T-tests for continuous variables to assess differences between IP1 and IP2 at the baseline phase. Explanatory variables were categorized into random and fixed variables, to overcome dependence problem resulting from repeated measures. The study applied Generalized Linear Mixed Models (GLMM) to accommodate fixed and random variables [