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Secular Changes in the Age of Menarche of Rural and Urban Girls from an Industrial Region of Poland in Relation to Family Structure

Author

Listed:
  • Jarosław Domaradzki

    (Department of Biostructure, Wroclaw University of Health and Sport Sciences, al. I. J. Paderewskiego 35, 51-612 Wrocław, Poland)

  • Teresa Sławińska

    (Department of Biostructure, Wroclaw University of Health and Sport Sciences, al. I. J. Paderewskiego 35, 51-612 Wrocław, Poland)

  • Małgorzata Kołodziej

    (Department of Biostructure, Wroclaw University of Health and Sport Sciences, al. I. J. Paderewskiego 35, 51-612 Wrocław, Poland)

  • Zofia Ignasiak

    (Department of Biostructure, Wroclaw University of Health and Sport Sciences, al. I. J. Paderewskiego 35, 51-612 Wrocław, Poland)

Abstract

Purpose: The consequence of better living conditions for every subsequent generation is the phenomenon of change in the rate of maturation and body dimensions. The aim of this study was to evaluate the intergenerational changes in the age of menarche of girls living in rural and urban communities in the industrial region of Poland using samples from two different centuries and to determine the relationship between family structure (two-parent and single-parent) and sexual maturation of the girls in both environments. Methods: The study included 3643 rural and urban girls aged 7–16 from southwestern Poland (Copper Basin). The research was cross-sectional in each environment around 2000 and 2010, and it was carried out twice. Two types of family structure were taken into account: two-parent and single-parent families. The median age of menarche and odds ratio (OR) of menarche depending on the place of residence and family structure were calculated. The status quo method was used when assessing the age of menarche. Results: In both groups, the age of menarche significantly decreased during the decade. The median age of menarche in the urban girls was lower compared with their rural peers, but a significant difference was found only during the second examination (a decade after the first examination). There were no significant changes in menarche during the decade regarding family structure (neither in girls from two-parent families nor those from single-parent families), except in rural girls from two-parent families. Comparing the median age of menarche of girls from two-parent families with girls from single-parent families (urban and rural) showed lower median values in the girls from two-parent families, but no differences were significant. Conclusions: The acceleration of the maturation rate over the last decade has been observed among both rural and urban girls. Environmental differences in maturation rates between rural and urban girls increased over the course of the decade, and the difference between the rural and urban girls’ age of menarche was statistically significant in the second examination (around 2010).The living conditions related to family structure did not significantly affect the timing of menarche.

Suggested Citation

  • Jarosław Domaradzki & Teresa Sławińska & Małgorzata Kołodziej & Zofia Ignasiak, 2022. "Secular Changes in the Age of Menarche of Rural and Urban Girls from an Industrial Region of Poland in Relation to Family Structure," IJERPH, MDPI, vol. 19(14), pages 1-8, July.
  • Handle: RePEc:gam:jijerp:v:19:y:2022:i:14:p:8692-:d:864683
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