Abstract
Background: Individuals residing in more deprived areas with a lower diet quality might have a higher mortality risk. We aimed to examine the association between deprivation within an area and all-cause mortality risk according to diet quality. Methods: We conducted a population-based prospective study on 27,994 men and 33,273 women aged 45–75 years. Neighborhood deprivation was assessed using the Japanese areal deprivation index (ADI). Dietary intakes were assessed using a validated 147-item food frequency questionnaire. Results: Individuals residing in the most deprived area had the lowest dietary scores. During the 16.7-year follow-up, compared to individuals with a high quality diet residing in the least deprived area, individuals with a low quality diet had a higher risk of mortality according to increment of ADI (p trend = 0.03); the multivariate-adjusted hazard ratio (95% confidence interval) was 1.09 (0.999–1.19), 1.17 (1.08–1.27), and 1.19 (1.08–1.32) in those residing in the lowest through the highest third of ADI, respectively. However, individuals with a high quality diet had no significant association between ADI and mortality. Conclusion: A well-balanced diet may prevent early death associated with neighborhood socioeconomic status among those residing in highly deprived areas.
Highlights
IntroductionSeveral studies reported that neighborhood socioeconomic status have been associated with cardiovascular disease and cancer [2,3,4,5,6,7]
Interest in the association between socioeconomic inequalities and health status has arisen [1].Recently, several studies reported that neighborhood socioeconomic status have been associated with cardiovascular disease and cancer [2,3,4,5,6,7]
To the best of our knowledge, the present study is the first study to examine the quality diet, whereas, individuals with a high quality diet had no significant association between association between and mortality according to diet quality
Summary
Several studies reported that neighborhood socioeconomic status have been associated with cardiovascular disease and cancer [2,3,4,5,6,7]. Japan reported that people residing in neighborhoods within more deprived areas show increased risk of all-cause mortality [3,4,5,8]. People residing in neighborhoods within more deprived areas may have a lower diet quality, which is a lower adherence to the dietary guidelines, and is at higher risk of mortality. Several studies showed that individuals with a lower diet quality had a higher risk of mortality [10,11,12,13]. Individuals residing in more deprived areas with a lower diet quality might have a higher mortality risk. Conclusion: A well-balanced diet may prevent early death associated with neighborhood socioeconomic status among those residing in highly deprived areas
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