tlm (version 0.1.5)

imt: Intima Media Thickness of the Carotid Artery

Description

Simulated data for intima media thickness of the carotid artery and age in 2784 adults.

Usage

data(imt)

Format

A data frame with 2784 observations on the following 3 variables.

age

numeric age of the individual (years).

imt

numeric intima media thickness of the carotid artery (mm).

logimt

logarithm of imt.

Details

Data were simulated to emulate true data pattern observed in a real study (see `References').

References

Rivera M et al. Association between long-term exposure to traffic-related air pollution and subclinical atherosclerosis: the REGICOR Study. Environmental Health Perspectives. 2013;121(2):223-230.

Examples

data(imt)
par(las = 1, mfrow = c(1, 2))
with(imt, plot(age, imt))
with(imt, plot(age, logimt))