Variables related to nutrition and health for 315 individuals
A dataset with 315 observations on the following 17 variables.
ID |
ID number for each subject in this sample |
Age |
Subject's age (in years) |
Smoke |
a factor with levels No Yes |
Quetelet |
Weight/(Height^2) |
Vitamin |
Vitamin use: 1=Regulary, 2=Occasionally, or 3=No |
Calories |
Number of calories consumed per day |
Fat |
Grams of fat consumed per day |
Fiber |
Grams of fiber consumed per day |
Alcohol |
Number of alcoholic drinks consumed per week |
Cholesterol |
Cholesterol consumed (mg per day) |
BetaDiet |
Dietary beta-carotene consumed (mcg per day) |
RetinolDiet |
Dietary retinol consumed (mcg per day) |
BetaPlasma |
Plasma beta-carotene (ng/ml) |
RetinolPlasma |
Plasma retinol (ng/ml) |
Gender |
Coded as Female or Male |
VitaminUse |
Coded as No Occasional Regular |
PriorSmoke |
Smoking status: 1=Never, 2=Former, or 3=Current |
Data from a cross-sectional study to investigate the relationship between personal characteristics and dietary factors, and plasma concentrations of retinol, beta-carotene and other carotenoids. Study subjects were patients who had an elective surgical procedure during a three-year period to biopsy or remove a lesion of the lung, colon, breast, skin, ovary or uterus that was found to be non-cancerous.
Nierenberg, Stukel, Baron, Dain, and Greenberg, "Determinants of plasma levels of beta-carotene and retinol", American Journal of Epidemiology (1989).