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Peer-reviewedCC BYScientific Reports

Temporal trends and climate association with Perthes disease in a nationwide cohort of military draft eligible male population

  • Hong Jin Kim1
  • Pil Whan Yoon2
  • Jae Youn Yoon2
  • Jihoon Ryu3
  • Euihwan Cho4
  • Dong-Hoon Lee5
  • Jun-Ki Moon5
5 affiliations
  1. 1Department of Orthopedic Surgery, Korea University Guro Hospital
  2. 2Department of Orthopedic Surgery, Seoul Now Hospital
  3. 3Department of Orthopedic Surgery, University Hospital Sharjah
  4. 4Department of Orthopedic Surgery, Seoul National University College of Medicine
  5. 5Department of Orthopedic Surgery, College of Medicine, Chung-Ang University Hospital
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Abstract

A retrospective, nationwide, population-based study was conducted to evaluate the correlation between climate change and Legg–Calvé–Perthes disease (LCPD) in young adult males in South Korea. Open repository data from the Military Manpower Administration were retrospectively collected to measure the prevalence and 95% confidence intervals (CI) of LCPD, along with the year (between 2013 and 2022) and region in South Korea. Meteorological factors were evaluated using the Korea Meteorological Administration’s National Climate Data Centre. Spearman’s correlation analysis and a simple distributed linear model (DLM) were used to assess the correlations between the prevalence of LCPD in the male population and meteorological factors. The prevalence of LCPD significantly correlated with temperature (r = 0.73, p = 0.017). Moreover, the prevalence of LCPD with incongruency was significantly correlated with carbon dioxide (CO2) concentration (r = 0.93, p < 0.001), particle matter 10 μm (µg/m3), defined as a coarse particle (r=-0.89, p = 0.001), particle matter 2.5 μm (µg/m3), defined as a fine particle (r=−0.80, p = 0.017), sulfur dioxide (r=−0.85, p = 0.002), nitrogen dioxide (r=−0.92, p < 0.001), and ozone (O3) (r = 0.88, p < 0.001). Despite this global warming trend, special attention is required to understand the complex interplay between the progression of LCPD and climate change.

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Cite

BibTeXRIS
BibTeX
@article{kim2026temporal,
  title = {{Temporal trends and climate association with Perthes disease in a nationwide cohort of military draft eligible male population}},
  author = {Hong Jin Kim and Pil Whan Yoon and Jae Youn Yoon and Jihoon Ryu and Euihwan Cho and Dong-Hoon Lee and Jun-Ki Moon},
  journal = {Scientific Reports},
  year = {2026},
  month = aug,
  doi = {10.1038/s41598-026-67647-y},
  url = {https://doi.org/10.1038/s41598-026-67647-y},
  note = {CC BY},
}
RIS
TY  - JOUR
TI  - Temporal trends and climate association with Perthes disease in a nationwide cohort of military draft eligible male population
AU  - Hong Jin Kim
AU  - Pil Whan Yoon
AU  - Jae Youn Yoon
AU  - Jihoon Ryu
AU  - Euihwan Cho
AU  - Dong-Hoon Lee
AU  - Jun-Ki Moon
PY  - 2026
DA  - 2026/08/01
JO  - Scientific Reports
DO  - 10.1038/s41598-026-67647-y
UR  - https://doi.org/10.1038/s41598-026-67647-y
AB  - A retrospective, nationwide, population-based study was conducted to evaluate the correlation between climate change and Legg–Calvé–Perthes disease (LCPD) in young adult males in South Korea. Open repository data from the Military Manpower Administration were retrospectively collected to measure the prevalence and 95% confidence intervals (CI) of LCPD, along with the year (between 2013 and 2022) and region in South Korea. Meteorological factors were evaluated using the Korea Meteorological Administration’s National Climate Data Centre. Spearman’s correlation analysis and a simple distributed linear model (DLM) were used to assess the correlations between the prevalence of LCPD in the male population and meteorological factors. The prevalence of LCPD significantly correlated with temperature (r = 0.73, p = 0.017). Moreover, the prevalence of LCPD with incongruency was significantly correlated with carbon dioxide (CO2) concentration (r = 0.93, p < 0.001), particle matter 10 μm (µg/m3), defined as a coarse particle (r=-0.89, p = 0.001), particle matter 2.5 μm (µg/m3), defined as a fine particle (r=−0.80, p = 0.017), sulfur dioxide (r=−0.85, p = 0.002), nitrogen dioxide (r=−0.92, p < 0.001), and ozone (O3) (r = 0.88, p < 0.001). Despite this global warming trend, special attention is required to understand the complex interplay between the progression of LCPD and climate change.
SN  - 2045-2322
ER  -