Self-reported visual impairment, physical activity and all-cause mortality: The HUNT Study

Scandinavian Journal of Public Health - Tập 45 Số 1 - Trang 33-41 - 2017
Audun Brunes1, W. Dana Flanders2, Liv Berit Augestad1,3
1Department of Neuroscience, Faculty of Medicine, Norwegian University of Science and Technology, Norway
2Department of Epidemiology, Rollins School of Public Health, Emory University, USA
3Department of Visual Impairment, Statped Mid-Norway, Norway

Tóm tắt

Aims: To examine the associations of self-reported visual impairment and physical activity (PA) with all-cause mortality. Methods: This prospective cohort study included 65,236 Norwegians aged ⩾20 years who had participated in the Nord-Trøndelag Health Study (HUNT2, 1995−1997). Of these participants, 11,074 (17.0%) had self-reported visual impairment (SRVI). The participants’ data were linked to Norway’s Cause of Death Registry and followed throughout 2012. Hazard ratios and 95% confidence intervals (CI) were assessed using Cox regression analyses with age as the time-scale. The Cox models were fitted for restricted age groups (<60, 60−84, ⩾85 years). Results: After a mean follow-up of 14.5 years, 13,549 deaths were identified. Compared with adults with self-reported no visual impairment, the multivariable hazard ratios among adults with SRVI were 2.47 (95% CI 1.94–3.13) in those aged <60 years, 1.22 (95% CI 1.13–1.33) in those aged 60–84 years and 1.05 (95% CI 0.96–1.15) in those aged ⩾85 years. The strength of the associations remained similar or stronger after additionally controlling for PA. When examining the joint associations, the all-cause mortality risk of SRVI was higher for those who reported no PA than for those who reported weekly hours of PA. We found a large, positive departure from additivity in adults aged <60 years, whereas the departure from additivity was small for the other age groups. Conclusions: Adults with SRVI reporting no PA were associated with an increased all-cause mortality risk. The associations attenuated with age.

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Thông tin xuất bản

Scandinavian Journal of Public Health

Tập 45 Số 1

33-41

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