Early Life Body Size Trajectory and the Risk of Primary Open-angle Glaucoma: A Retrospective Cohort Study

Jianqi Chen1, Yuyao Ling1, Yingting Zhu1

  • 1From the State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangzhou, China.

PubMed

Insights

Low adult body size increases primary open-angle glaucoma (POAG) risk. Maintaining a healthy weight throughout life, especially avoiding significant weight loss, is crucial for reducing POAG burden and preventing blindness.

Area of Science:

  • Ophthalmology
  • Epidemiology
  • Public Health

Background:

  • Primary open-angle glaucoma (POAG) is a leading cause of irreversible blindness worldwide.
  • Existing research on the association between body mass index (BMI) and POAG yields inconsistent findings.
  • Limited studies have explored the impact of early life body size trajectories on POAG risk.

Purpose of the Study:

  • To investigate the association between early life body size trajectories and the risk of developing primary open-angle glaucoma (POAG).
  • To examine the relationship between adult body size and POAG incidence.
  • To determine the influence of body size changes from childhood to adulthood on POAG risk.

Main Methods:

  • A retrospective cohort study utilizing data from 467,768 participants in the UK Biobank.
  • Body size in childhood was categorized as low, average, or high relative to peers.
  • Adult body size was assessed using BMI residuals, and nine distinct early life body size trajectories were defined. Cox proportional hazards models were employed to analyze POAG risk.

Main Results:

  • Individuals with body size trajectories ending in low adult body size exhibited an elevated risk of POAG (e.g., low-low: HR=1.35, P<.001).
  • Low body size in adulthood was consistently associated with increased POAG risk (HR=1.30, P<.001).
  • High body size in adulthood was linked to a reduced POAG risk (HR=0.86, P=.037), while high childhood body size showed a slight increase in risk (HR=1.14, P=.046).
  • Among individuals with low childhood body size, achieving average or high adult body size was associated with reduced POAG risk.
  • Substantial weight loss to a low adult body size from a high childhood body size significantly increased POAG risk (HR=1.66, P=.003).

Conclusions:

  • Low adult body size is a significant risk factor for primary open-angle glaucoma.
  • Avoiding excessive weight loss, particularly from childhood to adulthood, appears critical for mitigating POAG risk.
  • These findings highlight the importance of weight management throughout life for preventing POAG and its associated vision loss.
Abstract

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