Associations of Regular Internet Usage with All-Cause and Cause-Specific Mortality: A Prospective Cohort Study.

Autor:	Qiu CS; Department of Epidemiology, School of Public Health, Southern Medical University, Guangzhou, China., Tang XL; Department of Epidemiology, School of Public Health, Southern Medical University, Guangzhou, China., Li HM; Department of Epidemiology, School of Public Health, Southern Medical University, Guangzhou, China., Liao DQ; Department of Epidemiology, School of Public Health, Southern Medical University, Guangzhou, China., Chen HQ; Department of Chronic Disease Management, Yantian District Center for Disease Control and Prevention, Shenzhen, China., Du LY; Department of Epidemiology, School of Public Health, Southern Medical University, Guangzhou, China., Huang HX; Department of Epidemiology, School of Public Health, Southern Medical University, Guangzhou, China., Lai SM; Department of Epidemiology, School of Public Health, Southern Medical University, Guangzhou, China., Ran P; Department of Cardiology, Guangdong Cardiovascular Institute, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, China., Xiong ZY; Department of Epidemiology, School of Public Health, Southern Medical University, Guangzhou, China., Ou YQ; Department of Cardiology, Guangdong Cardiovascular Institute, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, China., Dong HJ; Department of Cardiology, Guangdong Cardiovascular Institute, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, China. Electronic address: donghaojian@gdph.org.cn., Li ZH; Department of Epidemiology, School of Public Health, Southern Medical University, Guangzhou, China. Electronic address: zhihaoli2013@smu.edu.cn.
Jazyk:	angličtina
Zdroj:	Journal of the American Medical Directors Association [J Am Med Dir Assoc] 2024 Dec; Vol. 25 (12), pp. 105301. Date of Electronic Publication: 2024 Oct 11.
DOI:	10.1016/j.jamda.2024.105301
Abstrakt:	Objectives: The impact of internet usage on mortality is not widely known. This study intended to investigate the associations between regular internet usage and the risks of all-cause and cause-specific mortality, while also ascertaining potential factors that may modify these correlations. Design: A community-based prospective cohort study. Setting and Participants: The study included 21,481 individuals [mean (SD) age, 64.1 (11.0) years] from the Health and Retirement Study, with data collected between 2006 and 2020. Methods: The Cox proportional hazards regression model was used to evaluate the associations between regular internet usage and the risks of all-cause and cause-specific mortality, adjusting for demographic factors, lifestyle behaviors, and other potential confounding factors. Moreover, we explored the association between daily hours of internet usage and the risk of outcomes. Results: Regular internet usage was significantly associated with a lower risk of all-cause mortality (hazard ratio, 0.78; 95% CI, 0.74-0.83) and cardiovascular mortality (hazard ratio, 0.72; 95% CI, 0.64-0.82). No significant interaction effects were observed for age, sex, regular exercise, or current alcohol consumption (all P interactions > .05). Additionally, estimations for daily hours of usage indicated a U-shaped relationship with all-cause mortality. Adults who used 2.1 to 4 hours per day had the lowest risk; however, not all estimations showed their significance on account of the limited sample size. Conclusions and Implications: Regular internet usage was associated with a lower risk of all-cause and cardiovascular mortality, which may prompt consideration of the beneficial impact of internet usage on lifespan. Competing Interests: Disclosures The authors declare no conflicts of interest. (Copyright © 2024 Post-Acute and Long-Term Care Medical Association. Published by Elsevier Inc. All rights reserved.)
Databáze:	MEDLINE
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