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Caffeine and cholesterol: interactions with hostility

J D Lane1, C F Pieper, J C Barefoot

  • 1Department of Psychiatry, Duke University Medical Center, Durham, NC.

Psychosomatic Medicine
|May 1, 1994
PubMed
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Higher caffeinated beverage intake correlates with increased coronary heart disease risk factors in men and women. Trait hostility did not significantly alter these associations, though trends suggested potential interactions.

Area of Science:

  • Cardiovascular Health
  • Nutritional Epidemiology
  • Psychosomatic Medicine

Background:

  • Caffeinated beverage consumption is controversially linked to serum cholesterol and coronary heart disease (CHD) risk.
  • Potential modulators of caffeine's effect on CHD risk, such as personality traits, require further investigation.

Purpose of the Study:

  • To investigate if trait hostility modulates the association between caffeinated beverage intake and serum lipid/lipoprotein levels.
  • To examine the relationship between caffeine consumption and coronary disease risk factors in middle-aged adults.

Main Methods:

  • Analysis of cohort data from a subsample of the University of North Carolina Alumni Heart Study.
  • Statistical adjustment for known CHD risk factors.
  • Assessment of interactions between caffeinated beverage intake and trait hostility.

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Main Results:

  • Higher caffeinated beverage intake was associated with elevated low-density lipoprotein cholesterol and a higher total to high-density lipoprotein cholesterol ratio.
  • Interactive effects between hostility and caffeine intake on lipid levels were not statistically significant, but trends suggested potential modulation.

Conclusions:

  • Caffeinated beverage consumption is linked to increased coronary heart disease risk markers.
  • Further research on personality factors modulating caffeine's effects is warranted to clarify health implications and identify at-risk individuals.