Research: PAGANINI-HILL and COLLEAGUES,

Listed in Issue 260

Abstract

PAGANINI-HILL and COLLEAGUES, published by Oxford University Press on behalf of the Johns Hopkins Bloomberg School of Public Health. journals.permissions@oup.com analyzed the relationship between antioxidant vitamin intake and all-cause mortality in older adults in data from the Leisure World Cohort Study data from Laguna Hills, California.

Background

To assess the relationship between antioxidant vitamin intake and all-cause mortality in older adults, we examined these associations using data from the Leisure World Cohort Study, a prospective study of residents of the Leisure World retirement community in Laguna Hills, California.

Methodology

In the early 1980s, participants (who were aged 44-101 years) completed a postal survey, which included details on use of vitamin supplements and dietary intake of foods containing vitamins A and C. Age-adjusted and multivariate-adjusted (for factors related to mortality in this cohort-smoking, alcohol intake, caffeine consumption, exercise, body mass index, and histories of hypertension, angina, heart attack, stroke, diabetes, rheumatoid arthritis, and cancer) hazard ratios for death were calculated using Cox regression for 8,640 women and 4,983 men (median age at entry, 74 years).

Results

During follow-up (1981-2013), 13,104 participants died (median age at death, 88 years). Neither dietary nor supplemental intake of vitamin A or vitamin C nor supplemental intake of vitamin E was significantly associated with mortality after multivariate adjustment. A compendium that summarizes previous findings of cohort studies evaluating vitamin intake and mortality is provided.

Conclusion

Attenuation in the observed associations between mortality and antioxidant vitamin use after adjustment for confounders in our study and in previous studies suggests that such consumption identifies persons with other mortality-associated lifestyle and health risk factors.

References

Paganini-Hill A, Kawas CH, Corrada MM. Antioxidant vitamin intake and mortality: the Leisure World Cohort Study. Am J Epidemiol. 181(2):120-6. Jan 15 2015 doi: 10.1093/aje/kwu294. Epub Dec 29 2014. https://www.ncbi.nlm.nih.gov/pubmed/25550360

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