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. 2022 Jul 7:67:1604242.
doi: 10.3389/ijph.2022.1604242. eCollection 2022.

Socioeconomic Disparities in Disability-Free Life Expectancy and Life Expectancy Among Older Chinese Adults From a 7-Year Prospective Cohort Study

Yuanyuan Zhan  1   2 , Yaofeng Han  1   2 , Ya Fang  1   2
Affiliations

Socioeconomic Disparities in Disability-Free Life Expectancy and Life Expectancy Among Older Chinese Adults From a 7-Year Prospective Cohort Study

Yuanyuan Zhan et al. Int J Public Health. .

Abstract

Objectives: We examined the magnitude and determinants of socioeconomic disparities in disability-free life expectancy and life expectancy at age 65 (DFLE65 and LE65) in China. Methods: Data from Chinese Longitudinal Healthy Longevity Survey collected during 2011-2018 (8,184 participants aged ≥65) were used. Socioeconomic status (SES) was measured by economic status (ES), and education, respectively. Multistate Markov models and microsimulations were fitted to estimate DFLE65 and LE65. Results: LE65 between high- and low-ES groups differed by 2.20 years for males and 2.04 years for females. The DFLE65 disparity in ES was 1.51 and 1.29 years for males and females, respectively. Not undergoing physical examinations, inadequate fruit/vegetable intake, and stress contributed to 35.10% and 57.36% of DFLE65 disparity in ES, as well as 26.36% and 42.65% of LE65 disparity for males and females, respectively. These disparities in education and ES were of a similar magnitude, while the above factors contributed little to education disparity. Conclusion: Socioeconomic disparities in DFLE65 and LE65 existed in China. Physical examination, fruit/vegetable intake and stress partly explained these disparities.

Keywords: disability-free life expectancy; economic status; education; life expectancy; occupation; older adults; socioeconomic disparities.

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Conflict of interest statement

The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest.

Figures

FIGURE 1
FIGURE 1
Prevalence of risk factors according to socioeconomic status for older males and females aged 65 years and over, based on the Chinese Longitudinal Healthy Longevity Survey, 2011–2018 (China, 2011–2018).
FIGURE 2
FIGURE 2
Observed and scenario socioeconomic disparities in disability-free life expectancy and life expectancy, based on the Chinese Longitudinal Healthy Longevity Survey, 2011–2018 (China, 2011–2018).
See this image and copyright information in PMC

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