The Association between Health Insurance and All-Cause, Cardiovascular Disease, Cancer and Cause-Specific Mortality: A Prospective Cohort Study

Liying Song, Yan Wang, Baodong Chen, Tan Yang, Weiliang Zhang and Yafeng Wang
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Liying Song: School of Economics and Finance, Xi’an Jiaotong University, Xi’an 710061, China
Yan Wang: School of Economics and Finance, Xi’an Jiaotong University, Xi’an 710061, China
Baodong Chen: Department of Accounting, School of Management, Xi’an Polytechnic University, No.19, Jinhua South Road, Xincheng District, Xi’an 710048, China
Tan Yang: School of Finance and Accounting, Xi’an University of Technology, No. 58, Yanxiang Road, Yanta District, Xi’an 710054, China
Weiliang Zhang: School of Economics and Finance, Xi’an International Studies University, South Wenyuan Road, Chang’an District, Xi’an 710128, China
Yafeng Wang: Department of Epidemiology and Biostatistics, School of Health Sciences, Wuhan University, Wuhan 430071, China

IJERPH, 2020, vol. 17, issue 5, 1-11

Abstract: The purpose of this study was to evaluate the association of insurance status with all-cause and cause-specific mortality. A total of 390,881 participants, aged 18–64 years and interviewed from 1997 to 2013 were eligible for a mortality follow-up in 31 December 2015. Cox proportional hazards models were used to calculate the hazards ratios (HR) and 95% confidence intervals (CI) to determine the association between insurance status and all-cause and cause-specific mortality. The sample group cumulatively aged 4.22 million years before their follow-ups, with a mean follow-up of 10.4 years, and a total of 22,852 all-cause deaths. In fully adjusted models, private insurance was significantly associated with a 17% decreased risk of mortality (HR = 0.83; 95% CI = 0.80–0.87), but public insurance was associated with a 21% increased risk of mortality (HR = 1.21; 95% CI = 1.15–1.27). Compared to noninsurance, private coverage was associated with about 21% lower CVD mortality risk (HR = 0.79, 95% CI = 0.70–0.89). In addition, public insurance was associated with increased mortality risk of kidney disease, diabetes and CLRD, compared with noninsurance, respectively. This study supports the current evidence for the relationship between private insurance and decreased mortality risk. In addition, our results show that public insurance is associated with an increased risk of mortality.

Keywords: health insurance; mortality; cohort (search for similar items in EconPapers)
JEL-codes: I I1 I3 Q Q5 (search for similar items in EconPapers)
Date: 2020
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