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Background/Objective <p>Visual impairment has recently been identified as a key modifiable risk factor for dementia. This study investigates the associations between cognitive impairment with both cataract diagnosis and sociodemographic determinants in a large representative sample of the United States civilian, noninstitutionalised population.</p> Subjects/methods <p>This is a Cross-sectional study using data from the 2023 iteration of the National Health Interview Survey (NHIS). Participants of the NHIS were included if they answered key questions regarding cognitive impairment and cataract. The primary outcomes included the associations between cognitive impairment with cataract, controlling for sociodemographic factors and modifiable risk factors for dementia. Associations were modelled through univariable and multivariable logistic regression analysis.</p> Results <p>Overall, 29,522 participants were included in the study, comprising 13,462 males (45.6%) and 16,060 females (54.4%). Of these, 19,781 (67.0%) were under the age of 65, while 9,741 (33.0%) were 65 or older. Univariable analysis showed that there were higher odds of cognitive impairment amongst those with cataract (OR = 2.31, <i>p</i> &lt; 0.001). Multivariable analysis showed significant associations between cognitive impairment with cataract (OR = 1.58, <i>p</i> &lt; 0.001), high cholesterol (OR = 1.49, <i>p</i> = 0.004), depression (OR = 2.75, <i>p</i> &lt; 0.001), history of traumatic brain injury (OR = 1.52, <i>p</i> &lt; 0.001), smoking (OR = 1.16, <i>p</i> &lt; 0.025), social isolation (OR = 4.11, <i>p</i> &lt; 0.001), low levels of physical activity (OR = 1.69, <i>p</i> &lt; 0.001), and hearing impairment (OR = 2.26, <i>p</i> &lt; 0.001).</p> Conclusions <p>Cognitive impairment was robustly associated with cataract in a representative sample of the United States civilian population age 18 and older. Health policymakers should consider the impact of cataract in designing preventative and treatment strategies for individuals with cognitive impairment.</p>

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Associations between cataract and cognitive impairment in a sample of the United States Population

  • 期刊论文

  • 发表日期：

    2026年7月9日

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  • Chris Zajner,
  • Ryan S. Huang,
  • Marko M. Popovic,
  • Peter J. Kertes,
  • Rajeev H. Muni,
  • Radha P. Kohly

摘要

Background/Objective

Visual impairment has recently been identified as a key modifiable risk factor for dementia. This study investigates the associations between cognitive impairment with both cataract diagnosis and sociodemographic determinants in a large representative sample of the United States civilian, noninstitutionalised population.

Subjects/methods

This is a Cross-sectional study using data from the 2023 iteration of the National Health Interview Survey (NHIS). Participants of the NHIS were included if they answered key questions regarding cognitive impairment and cataract. The primary outcomes included the associations between cognitive impairment with cataract, controlling for sociodemographic factors and modifiable risk factors for dementia. Associations were modelled through univariable and multivariable logistic regression analysis.

Results

Overall, 29,522 participants were included in the study, comprising 13,462 males (45.6%) and 16,060 females (54.4%). Of these, 19,781 (67.0%) were under the age of 65, while 9,741 (33.0%) were 65 or older. Univariable analysis showed that there were higher odds of cognitive impairment amongst those with cataract (OR = 2.31, p < 0.001). Multivariable analysis showed significant associations between cognitive impairment with cataract (OR = 1.58, p < 0.001), high cholesterol (OR = 1.49, p = 0.004), depression (OR = 2.75, p < 0.001), history of traumatic brain injury (OR = 1.52, p < 0.001), smoking (OR = 1.16, p < 0.025), social isolation (OR = 4.11, p < 0.001), low levels of physical activity (OR = 1.69, p < 0.001), and hearing impairment (OR = 2.26, p < 0.001).

Conclusions

Cognitive impairment was robustly associated with cataract in a representative sample of the United States civilian population age 18 and older. Health policymakers should consider the impact of cataract in designing preventative and treatment strategies for individuals with cognitive impairment.