About the Authors

Attila Hancioglu


Affiliation Statistics and Monitoring Section, Division of Planning and Strategy, UNICEF, New York, New York, United States of America

Fred Arnold

Affiliation MEASURE DHS, ICF International, Calverton, Maryland, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Analyzed the data: AH FA. Wrote the first draft of the manuscript: AH FA. Contributed to the writing of the manuscript: AH FA. ICMJE criteria for authorship read and met: AH FA. Agree with manuscript results and conclusions: AH FA.