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LIAO Yuqi, KOU Wenkai, SHI Sailong, et al. Relationship Between Hearing Loss and Cognitive Function in Elderly Chinese People: A Study Based on Propensity Score Matching[J]. Journal of Sichuan University (Medical Sciences), 2024, 55(1): 161-167. DOI: 10.12182/20240160302
Citation: LIAO Yuqi, KOU Wenkai, SHI Sailong, et al. Relationship Between Hearing Loss and Cognitive Function in Elderly Chinese People: A Study Based on Propensity Score Matching[J]. Journal of Sichuan University (Medical Sciences), 2024, 55(1): 161-167. DOI: 10.12182/20240160302

Relationship Between Hearing Loss and Cognitive Function in Elderly Chinese People: A Study Based on Propensity Score Matching

More Information
  • Corresponding author:

    WAN Yang, E-mail: wanyang2014@scu.edu.cn

  • Received Date: August 01, 2023
  • Revised Date: December 22, 2023
  • Published Date: January 19, 2024
  • Objective 

    To explore the relationship between hearing loss and cognitive function in the elderly population through propensity score matching method.

    Methods 

    We analyzed the data of 7605 participants aged 60 and above who were included in the 2018 China Health and Retirement Longitudinal Study (CHARLS). The non-substitutable 1∶1 nearest neighbor matching method without caliper value was used for propensity score matching and G-computation was used to estimate the average treatment effect (ATE) of hearing loss on all dimensions of cognitive function.

    Results 

    Before matching, there were 3626 (47.68%) women, with 1409 (18.53%) of whom suffering from hearing loss and 3031 (39.86%) of whom suffering from cognitive impairment. After matching, 1409 subjects were included in the hearing loss group and 1409, in the normal hearing group, with both groups sharing similar distribution of basic demographic characteristics. The results for the average treatment effect of the population indicated that the cognitive function scores of the hearing loss group were lower than those of the normal hearing group, with the overall cognitive function being 0.593 points lower (95% confidence intervel [CI]: -0.916--0.257, P<0.001), orientation being 0.183 points lower (95% CI: -0.302--0.055, P=0.004), immediate memory being 0.150 points lower (95% CI: -0.218--0.085, P<0.001), and language skills being 0.178 points lower (95% CI: -0.303--0.058, P=0.006). The prevalence of cognitive impairment of the hearing loss group was 4.2% higher than that of the normal hearing group (95% CI: 0.007-0.077, P=0.020).

    Conclusion 

    Hearing loss adversely affects the orientation, memory, and language skills of the elderly population and forms a potential risk factor for cognitive impairment in the elderly population.

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