NHANES: Body shape, mortality, and related measurements from NHANES...

In dtkaplan/DCF-devel: Distributing materials for the DCF course

Description

These data were collected as part of the NHANES 1999-2004 study.

Usage

data(NHANES)

Format

NHANES is a data frame with 31126 observations on the following 19 variables.

smallNHANES is a random sample of 500 of the observations, intended to let people prototype graphical displays, etc.

sex

categorical

age

in years

pregnant

categorical

died

Whether the person is alive at the time of follow up. Deaths are divided into cardiovascular and non-cardiovascular.

followup

months of follow up (for mortality data)

smoker

categorical

diabetic

categorical

height

height (meters)

weight

weight (kilograms)

BMI

body mass index

trunkfat

percent trunk fat

percentfat

percent fat

leanBMI

lean-tissue only BMI

framingham

Framingham risk score

HDL

HDL cholesterol

LDL

cholesterol

systolic

systolic blood pressure, mmHg

diastolic

diastolic blood pressure, mmHg

income

ratio of family income to poverty threshold. 5 is ratio greater than or equal to 5

Source

These data were assempled from NHANES 1999-2004 sources by Dr. Nir Krakauer at City College of New York.

References

Nir Y. Krakauer, Jesse C. Krakauer, "A New Body Shape Index Predicts Mortality Hazard Independently of Body Mass Index" PloS one, 7 (7) PMID: 22815707, 2012. http://www.plosone.org/article/info:doi/10.1371/journal.pone.0039504

Examples

data(NHANES)
str(NHANES)
nrow(NHANES)
data(smallNHANES)
nrow(smallNHANES)

dtkaplan/DCF-devel documentation built on May 15, 2019, 4:58 p.m.