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Skin color and mortality.

J E Keil1, S E Sutherland, R G Knapp

  • 1Department of Biostatistics, Epidemiology and Systems Science, Medical University of South Carolina, Charleston 29425.

American Journal of Epidemiology
|December 1, 1992
PubMed
Summary
This summary is machine-generated.

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This study found no significant link between darker skin color and mortality from cardiovascular diseases or all causes in Black adults. Lighter skin color showed a minor association with all-cause mortality.

Area of Science:

  • Public Health
  • Epidemiology
  • Dermatology

Background:

  • Skin color has been hypothesized to influence health outcomes, particularly cardiovascular disease (CVD) mortality.
  • Previous research on skin pigmentation and mortality risk in Black populations is limited.

Purpose of the Study:

  • To investigate the association between skin color and all-cause, coronary heart disease (CHD), and all cardiovascular disease (CVD) mortality.
  • To examine potential long-term effects of skin pigmentation on mortality risk in a Black cohort.

Main Methods:

  • Utilized data from 787 Black men and women in the Charleston Heart Study Cohort (1960-1990).
  • Measured skin color using a reflectometer and analyzed mortality rates across tertiles of skin reflectance.
  • Employed proportional hazard regression analyses, adjusting for covariates like age, sex, education, blood pressure, cholesterol, smoking, BMI, and diabetes history.

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Main Results:

  • No significant differences in mortality rates were observed across skin color tertiles, except for sex-specific differences.
  • Regression analyses revealed no significant relationship between skin color and time to death, with one exception.
  • A statistically significant association was found between lighter skin color and increased all-cause mortality (p = 0.03).

Conclusions:

  • The study found no evidence supporting a long-term adverse effect of darker skin color on mortality from cardiovascular diseases or all causes.
  • A marginal association between lighter skin color and higher all-cause mortality warrants further investigation.
  • Skin reflectance measurements did not reveal a significant link between darker pigmentation and increased risk of death from cardiovascular conditions.