ORIGINAL RESEARCH
Body mass index of Russian schoolchildren in the second decade of the XXI century
1 Institute of Developmental Physiology of the Russian Academy of Education, Moscow, Russia
2 Pirogov Russian National Research Medical University, Moscow, Russia
3 Institute of Demographic Research — Branch of the Federal Center of Theoretical and Applied Sociology of the Russian Academy of Sciences (IDR FCTAS RAS), Moscow, Russia
Correspondence should be addressed: Natalia A. Skoblina
ul. Ostrovityanova, 1, Moscow, 117997, Russia; ur.liam@mod_anilboks
Author contribution: Levushkin SP, Zhukov OF, Skoblina NA — trial concept and design; Skoblina EV — data collection and processing; Zhukov OF, Skoblina EV — text writing; Levushkin SP, Skoblina NA — editing.
Compliance with ethical standards: the study has been approved by the Local Ethics Committee of Pirogov Russian National Research University (protocol No. 159 as of November 21, 2016) and conducted as a part of research work (state recording number of research and technological development АААА-А19-119021890068-7 as of February 18, 2019), it does not endanger the participants, complied with the requirements of biomedical ethics, and voluntary informed consent has been obtained for each participant.