backpain | R Documentation |
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).
data("backpain")
A data frame with 434 observations on the following 4 variables.
ID
a factor which identifies matched pairs.
status
a factor with levels case
and control
.
driver
a factor with levels no
and yes
.
suburban
a factor with levels no
and yes
indicating a suburban resident.
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.
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.
data("backpain", package = "HSAUR3")
summary(backpain)
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