On the Paper by Leonid A. Gavrilov and Natalia S. Gavrilova entitled “Trends in Human Species-Specific Lifespan and Actuarial Aging Rate” Published in Biochemistry (Moscow), Vol. 87, Nos. 12-13, pp. 1622-1633 (2022)

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Anatoly I. Mikhalsky^a

Institute of Control Sciences, Russian Academy of Sciences, 117997 Moscow, Russia

Received November 28, 2022; Revised January 10, 2023; Accepted January 10, 2023

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The methodology used for analyzing the survival process should keep in mind heterogeneity in empirical data. Cross-sectional data are more heterogeneous in comparison with birth-cohort data.

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KEY WORDS: trends in human aging rate, mathematical models, heterogeneous data, cohort and cross-sectional data

DOI: 10.1134/S0006297923010145

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