Effect of water quality, sanitation, hand washing, and nutritional interventions on child development in rural Bangladesh (WASH Benefits Bangladesh): a cluster-randomised controlled trial  Fahmida Tofail, PhD, Prof Lia CH Fernald, PhD, Kishor K Das, MS, Mahbubur Rahman, MBBS, Prof Tahmeed Ahmed, PhD, Kaniz K Jannat, MBBS, Leanne Unicomb, PhD, Benjamin F Arnold, PhD, Sania Ashraf, PhD, Prof Peter J Winch, MD, Patricia Kariger, PhD, Christine P Stewart, PhD, Prof John M Colford, MD, Prof Stephen P Luby, MD  The Lancet Child & Adolescent Health  Volume 2, Issue 4, Pages 255-268 (April 2018) DOI: 10.1016/S2352-4642(18)30031-2 Copyright © 2018 The Author(s). Published by Elsevier Ltd. This is an Open Access article under the CC BY 4.0 license Terms and Conditions

Figure 1 Trial profile Numbers are children except where specified. Attrition was only at the child level; no cluster dropped out. WASH=water, sanitation, and handwashing. EASQ=Extended Ages and Stages Questionnaire. The Lancet Child & Adolescent Health 2018 2, 255-268DOI: (10.1016/S2352-4642(18)30031-2) Copyright © 2018 The Author(s). Published by Elsevier Ltd. This is an Open Access article under the CC BY 4.0 license Terms and Conditions

Figure 2 Kernal density plots of combined Z scores of the Extended Ages and Stages Questionnaire at year 2 follow-up Kernel density plots summarise the distribution of combined Z scores of index children who were born into the study and were between 21–30 months (median 26 months, IQR 24–27) at the time of measurement. Data are mean difference (95% CI). WASH=water, sanitation, and handwashing. N=nutrition. The Lancet Child & Adolescent Health 2018 2, 255-268DOI: (10.1016/S2352-4642(18)30031-2) Copyright © 2018 The Author(s). Published by Elsevier Ltd. This is an Open Access article under the CC BY 4.0 license Terms and Conditions