Bulletin WHO_Supplementary Appendix

This is the complementary material of the research paper, titled "Water quality and child undernutrition: evidence from 29 low- and middle-income countries". This study used a new module on household water testing incorporated into the Multiple Indicator Cluster Surveys (MICS) to examine the relationship between Escherichia coli contamination and child stunting and underweight in low- and middle-income countries.