backpain: Risk of driving on herniated discs.

backpainR Documentation

Risk of driving on herniated discs.

Description

These data are from a 1:1 matched case control study to investigate the risk of driving on lower back pain caused by acute herniated lumbar intervertebral discs. A total of 217 cases were individuals between the ages of 20 and 64 living in New Haven, Connecticut. For each case a control was selected from patients admitted to the same hospital as the case, and matched with the case based on sex and age (within 10 years).

Usage

backpain

Format

A data frame with 434 observations and four variables.

group:

case or control

driver:

whether or not the individual is a driver (no or yes)

residence:

residence of individual (city or suburban)

set:

integer-valued identifier for a matched pair of individuals

Note

These data are featured in Collett (2003). The study is described in Kelsey and Hardy (1975) and Holford, White, and Kelsey (1978).

Source

Holford, T. R., White, C., & Kelsey, J. L. (1978). Multivariate analysis for matched case-control studies. American Journal of Epidemiology, 107, 245-256.

Kelsey, J. L. & Hardy, H. J. (1975). Driving of motor vehicles as a risk factor for acute herniated lumbar intervertebral disc. American Journal of Epidemiology, 102, 63-73.

Collett, D. (2003). Modelling binary data (2nd Edition). Boca Raton: Chapman & Hall/CRC.


trobinj/trtools documentation built on Jan. 28, 2024, 3:20 a.m.