Dataset Information

Sunlight exposure and cardiovascular risk factors in the REGARDS study: a cross-sectional split-sample analysis.

ABSTRACT:

Background

Previous research has suggested that vitamin D and sunlight are related to cardiovascular outcomes, but associations between sunlight and risk factors have not been investigated. We examined whether increased sunlight exposure was related to improved cardiovascular risk factor status.

Methods

Residential histories merged with satellite, ground monitor, and model reanalysis data were used to determine previous-year sunlight radiation exposure for 17,773 black and white participants aged 45+ from the US. Exploratory and confirmatory analyses were performed by randomly dividing the sample into halves. Logistic regression models were used to examine relationships with cardiovascular risk factors.

Results

The lowest, compared to the highest quartile of insolation exposure was associated with lower high-density lipoprotein levels in adjusted exploratory (-2.7 mg/dL [95% confidence interval: -4.2, -1.2]) and confirmatory (-1.5 mg/dL [95% confidence interval: -3.0, -0.1]) models. The lowest, compared to the highest quartile of insolation exposure was associated with higher systolic blood pressure levels in unadjusted exploratory and confirmatory, as well as the adjusted exploratory model (2.3 mmHg [95% confidence interval: 0.8, 3.8]), but not the adjusted confirmatory model (1.6 mg/dL [95% confidence interval: -0.5, 3.7]).

Conclusions

The results of this study suggest that lower long-term sunlight exposure has an association with lower high-density lipoprotein levels. However, all associations were weak, thus it is not known if insolation may affect cardiovascular outcomes through these risk factors.

SUBMITTER: Kent ST

PROVIDER: S-EPMC4075775 | biostudies-literature | 2014 Jun

REPOSITORIES: biostudies-literature

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Publications

Sunlight exposure and cardiovascular risk factors in the REGARDS study: a cross-sectional split-sample analysis.

Kent Shia T ST Cushman Mary M Howard George G Judd Suzanne E SE Crosson William L WL Al-Hamdan Mohammad Z MZ McClure Leslie A LA

BMC neurology 20140619

<h4>Background</h4>Previous research has suggested that vitamin D and sunlight are related to cardiovascular outcomes, but associations between sunlight and risk factors have not been investigated. We examined whether increased sunlight exposure was related to improved cardiovascular risk factor status.<h4>Methods</h4>Residential histories merged with satellite, ground monitor, and model reanalysis data were used to determine previous-year sunlight radiation exposure for 17,773 black and white p ...[more]

PMID: 24946776

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Dataset Information

Sunlight exposure and cardiovascular risk factors in the REGARDS study: a cross-sectional split-sample analysis.

Background

Methods

Results

Conclusions

Publications

Sunlight exposure and cardiovascular risk factors in the REGARDS study: a cross-sectional split-sample analysis.

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