Assessment of physical development healthy full-term newborns of the Republic of Crimea centile standards INTERGROWTH-21<sup>st</sup>

Abstract

Objective: to determine the feasibility of using INTERGROWTH-21st centile tables in assessing the physical development of full-term newborns in the Republic of Crimea. Materials and methods: a retrospective analysis of 1300 birth histories of full-term newborns whose mothers permanently reside on the territory of the Republic of Crimea was carried out. Mass and length, chest and chest circumference were analyzed. The assessment of the obtained anthropometric indicators was carried out by the centile method according to the INTERGROWTH-21st tables. In the study, we conducted a comparative assessment using the accepted INTERGROWTH-21st standards, comparing them with the accepted domestic assessments of the state of the physical development of newborns. Results: the values of anthropometric indicators of boys in the Republic of Crimea are shifted towards higher estimates. Estimates “below average”, “low”, “very low” are found in no more than 3% of cases. “Above average”, “high”, “very high” are much more common: with 10% — for weight/length ratio, 18% — for weight, 34% — for length, and 51% — for head circumference. The values of anthropometric indicators of girls in the Republic of Crimea are also biased towards higher estimates. Ratings of “below average”, “low”, “very low” are very rare: 6% — for the weight/length ratio, 4% — for the weight rating, less than 1% — for the body length rating and 2% — for the head circumference. “Above average”, “high”, “very high” scores are much more common: 8% — for weight/length ratio, 15% — for weight score, 45% — for length score, and 30%— for OH. Conclusions: we consider the use of centile tables INTERGROWTH-21st in assessing the physical development of full-term newborns of the Republic of Kazakhstan to be inappropriate and we see the need to develop regional standards.