Regionální diferenciace reprodukčního chování v Česku v letech 2015, 2019 a 2023: deskriptivní a shluková analýza

Kristýna Dvořáková – Filip Hon
Demografie, 68(1): 52–71
https://doi.org/10.54694/dem.0379

Abstract
This article examines regional differences in reproductive behaviour across Czech districts in 2015, 2019, and 2023. Its aim is to describe spatial disparities in selected indicators, assess their temporal stability, and identify groups of districts with similar reproductive patterns. The analysis draws on data from the Demographic Yearbook of Districts published by the Czech Statistical Office and uses descriptive statistics, correlation analysis, and hierarchical cluster analysis based on components derived through principal component analysis. The results confirm there is substantial spatial variability in the observed indicators as well as stable relationships between them. The cluster analysis identified five groups of districts, with the Northwestern Region forming the most internally homogeneous cluster, characterised by a low maternal age at first birth, a high share of nonmarital births, elevated levels of induced abortions for non-medical reasons, and a higher proportion of third‑ and higher‑order births. The remaining clusters represent distinct types of reproductive behaviour, collectively demonstrating the considerable diversity of reproductive patterns across Czechia.

Keywords
Reproductive behaviour, Regionalisation, Cluster analysis