Dietary antioxidant vitamins intake and mortality: A report from two cohort studies of Chinese adults in Shanghai

Background: Few studies have evaluated dietary antioxidant vitamins intake in relation to risk of mortality in Asia. Methods: We examined the associations between total carotene, vitamin C, and vitamin E from diet and risk of mortality from all causes, cancer, and cardiovascular disease in 134,35...

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Main Author: Long-Gang Zhao
Format: Article
Language:English
Published: Japan Epidemiological Association 2017-04-01
Series:Journal of Epidemiology
Subjects:
Online Access:https://www.jstage.jst.go.jp/article/jea/27/3/27_27_89/_pdf
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author Long-Gang Zhao
author_facet Long-Gang Zhao
author_sort Long-Gang Zhao
collection DOAJ
description Background: Few studies have evaluated dietary antioxidant vitamins intake in relation to risk of mortality in Asia. Methods: We examined the associations between total carotene, vitamin C, and vitamin E from diet and risk of mortality from all causes, cancer, and cardiovascular disease in 134,358 participants (59,739 men and 74,619 women) from the Shanghai Men's Health Study and Shanghai Women's Health Study, two prospective cohort studies of middle-aged and elderly Chinese adults in urban Shanghai. Participants were followed up for a median period of 8.3 and 14.2 years for men and women, respectively. Hazard ratios (HRs) and 95% confidence interval (CIs) were estimated using Cox proportional hazards regression models. Results: During the 495,332 and 1,029,198 person-years of follow-up for men and women, respectively, there were 10,079 deaths (4170 men and 5909 women). For men, compared with the lowest quintiles, the multivariable-adjusted risk reductions in the highest categories were 17% (HR 0.83; 95% CI, 0.76–0.92) for dietary total carotene and 17% (HR 0.83; 95% CI, 0.75–0.91) for dietary vitamin C. Associations were weaker in women than in men, though they were still statistically significant (highest versus lowest quintiles of dietary total carotene, HR 0.87; 95% CI, 0.80–0.95; dietary vitamin C: HR 0.83; 95% CI, 0.77–0.91). Significant inverse associations were observed between dietary total carotene, vitamin C, and risk of cardiovascular disease mortality but not cancer mortality. Conclusion: This study suggests that total carotene and vitamin C intake from diet were inversely associated with deaths from all causes and cardiovascular disease in middle-aged or elderly people in China.
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spelling doaj.art-46420c4c2bc3493381b0047f24b6dea32022-12-22T03:11:00ZengJapan Epidemiological AssociationJournal of Epidemiology0917-50401349-90922017-04-01273899710.1016/j.je.2016.10.002Dietary antioxidant vitamins intake and mortality: A report from two cohort studies of Chinese adults in ShanghaiLong-Gang ZhaoBackground: Few studies have evaluated dietary antioxidant vitamins intake in relation to risk of mortality in Asia. Methods: We examined the associations between total carotene, vitamin C, and vitamin E from diet and risk of mortality from all causes, cancer, and cardiovascular disease in 134,358 participants (59,739 men and 74,619 women) from the Shanghai Men's Health Study and Shanghai Women's Health Study, two prospective cohort studies of middle-aged and elderly Chinese adults in urban Shanghai. Participants were followed up for a median period of 8.3 and 14.2 years for men and women, respectively. Hazard ratios (HRs) and 95% confidence interval (CIs) were estimated using Cox proportional hazards regression models. Results: During the 495,332 and 1,029,198 person-years of follow-up for men and women, respectively, there were 10,079 deaths (4170 men and 5909 women). For men, compared with the lowest quintiles, the multivariable-adjusted risk reductions in the highest categories were 17% (HR 0.83; 95% CI, 0.76–0.92) for dietary total carotene and 17% (HR 0.83; 95% CI, 0.75–0.91) for dietary vitamin C. Associations were weaker in women than in men, though they were still statistically significant (highest versus lowest quintiles of dietary total carotene, HR 0.87; 95% CI, 0.80–0.95; dietary vitamin C: HR 0.83; 95% CI, 0.77–0.91). Significant inverse associations were observed between dietary total carotene, vitamin C, and risk of cardiovascular disease mortality but not cancer mortality. Conclusion: This study suggests that total carotene and vitamin C intake from diet were inversely associated with deaths from all causes and cardiovascular disease in middle-aged or elderly people in China.https://www.jstage.jst.go.jp/article/jea/27/3/27_27_89/_pdfAntioxidantsVitaminsMortalityCohort studies
spellingShingle Long-Gang Zhao
Dietary antioxidant vitamins intake and mortality: A report from two cohort studies of Chinese adults in Shanghai
Journal of Epidemiology
Antioxidants
Vitamins
Mortality
Cohort studies
title Dietary antioxidant vitamins intake and mortality: A report from two cohort studies of Chinese adults in Shanghai
title_full Dietary antioxidant vitamins intake and mortality: A report from two cohort studies of Chinese adults in Shanghai
title_fullStr Dietary antioxidant vitamins intake and mortality: A report from two cohort studies of Chinese adults in Shanghai
title_full_unstemmed Dietary antioxidant vitamins intake and mortality: A report from two cohort studies of Chinese adults in Shanghai
title_short Dietary antioxidant vitamins intake and mortality: A report from two cohort studies of Chinese adults in Shanghai
title_sort dietary antioxidant vitamins intake and mortality a report from two cohort studies of chinese adults in shanghai
topic Antioxidants
Vitamins
Mortality
Cohort studies
url https://www.jstage.jst.go.jp/article/jea/27/3/27_27_89/_pdf
work_keys_str_mv AT longgangzhao dietaryantioxidantvitaminsintakeandmortalityareportfromtwocohortstudiesofchineseadultsinshanghai