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Objective <p>To investigate and describe the impact of nonrefractive visual impairment (NVI) and its severity on all-cause and cause-specific mortality, along with the latest estimations.</p> Methods <p>Cox proportional hazards regression models with multiple covariate adjustments and Fine-Gray competing risk regression models assessed the risk of all-cause and specific-cause mortality. Propensity score matching (PSM) was employed to achieve covariate balance.</p> Results <p>Among 7 961 participants (representing 171 383 125 non-institutionalized US individuals), baseline NVI was present in 350 participants (4.40%), with 313 (3.93%) having mild NVI and 37 (0.47%) having severe NVI. Both any NVI and Severe NVI were associated with increased all-cause and diabetes mellitus (DM)-related mortality. After PSM, the results remained consistent (for all-cause mortality: HR, 1.34; 95% CI, 1.05–1.70; for DM-related mortality: HR, 3.54; 95% CI, 1.15–10.97). Severity analysis demonstrated a significant trend between increasing NVI severity and elevated risks of all-cause and DM-specific mortality.</p> Conclusion <p>Our findings confirm that NVI and its severity are independent risk factors for all-cause and DM-specific mortality among the US population. This highlights the importance of regular visual acuity examinations, particularly for NVI screening, especially in individuals with diabetes.</p>

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Association of nonrefractive visual impairment with risk of all-cause and specific-cause mortality in the National Health and Nutrition Examination Survey, 1999 to 2008

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2025年3月24日

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  • Siyu Gui,
  • Xinchen Wang,
  • Qianqian Wang,
  • Lan Zhong,
  • Jianchao Qiao,
  • Yueyang Xu,
  • Yiran Li,
  • Zhihao Huang,
  • Chengyang Hu,
  • Fangbiao Tao,
  • Xiaodong Sun,
  • Heting Liu,
  • Jie Gao

摘要

Objective

To investigate and describe the impact of nonrefractive visual impairment (NVI) and its severity on all-cause and cause-specific mortality, along with the latest estimations.

Methods

Cox proportional hazards regression models with multiple covariate adjustments and Fine-Gray competing risk regression models assessed the risk of all-cause and specific-cause mortality. Propensity score matching (PSM) was employed to achieve covariate balance.

Results

Among 7 961 participants (representing 171 383 125 non-institutionalized US individuals), baseline NVI was present in 350 participants (4.40%), with 313 (3.93%) having mild NVI and 37 (0.47%) having severe NVI. Both any NVI and Severe NVI were associated with increased all-cause and diabetes mellitus (DM)-related mortality. After PSM, the results remained consistent (for all-cause mortality: HR, 1.34; 95% CI, 1.05–1.70; for DM-related mortality: HR, 3.54; 95% CI, 1.15–10.97). Severity analysis demonstrated a significant trend between increasing NVI severity and elevated risks of all-cause and DM-specific mortality.

Conclusion

Our findings confirm that NVI and its severity are independent risk factors for all-cause and DM-specific mortality among the US population. This highlights the importance of regular visual acuity examinations, particularly for NVI screening, especially in individuals with diabetes.