Ethical approval
Yenepoya University Ethics Committee, Mangaluru, India, approved the study protocol (YUEC232/2016). We also obtained the necessary permission from the Deputy Director, ICDS, Dakshina Kannada district, to get the data from Anganwadi centres in the urban slums of Mangaluru. We obtained informed written consent from all the study participants for voluntary participation in the local language, Kannada .
Funding : The authors received no financial support for the research, authorship, and/or
publication of this article.