| backpain {HSAUR3} | R Documentation | 
Driving and Back Pain Data
Description
A case-control study to investigate whether driving a car is a risk factor for low back pain resulting from acute herniated lumbar intervertebral discs (AHLID).
Usage
data("backpain")Format
A data frame with 434 observations on the following 4 variables.
- ID
- a factor which identifies matched pairs. 
- status
- a factor with levels - caseand- control.
- driver
- a factor with levels - noand- yes.
- suburban
- a factor with levels - noand- yesindicating a suburban resident.
Details
These data arise from a study reported in Kelsey and Hardy (1975) which was designed to investigate whether driving a car is a risk factor for low back pain resulting from acute herniated lumbar intervertebral discs (AHLID). A case-control study was used with cases selected from people who had recently had X-rays taken of the lower back and had been diagnosed as having AHLID. The controls were taken from patients admitted to the same hospital as a case with a condition unrelated to the spine. Further matching was made on age and sex and a total of 217 matched pairs were recruited, consisting of 89 female pairs and 128 male pairs.
Source
Jennifer L. Kelsey and Robert J. Hardy (1975), Driving of Motor Vehicles as a Risk Factor for Acute Herniated Lumbar Intervertebral Disc. American Journal of Epidemiology, 102(1), 63–73.
Examples
  data("backpain", package = "HSAUR3")
  summary(backpain)