NutritionStudy: Nutrition Study

In Lock5withR: Datasets for 'Statistics: Unlocking the Power of Data'

Description

Variables related to nutrition and health for 315 individuals

Format

A data frame 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=Regular, 2=Occasional, 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)

• Sex Cosed as Female or Male

• VitaminUse Coded as No Occasional Regular

• EverSmoke Smoking status: Never, Former, or Current

• PriorSmoke Smoking status: 1, 2, or 3

Details

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.

Source

Nierenberg, Stukel, Baron, Dain, and Greenberg, "Determinants of plasma levels of beta-carotene and retinol", American Journal of Epidemiology (1989).

References

Data downloaded from http://lib.stat.cmu.edu/DASL/.

Examples

data(NutritionStudy)

Lock5withR documentation built on May 2, 2019, 3:43 p.m.