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 case and control.

driver

a factor with levels no and yes.

suburban

a factor with levels no and yes indicating 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 = "HSAUR2")
  summary(backpain)

Results

R version 3.3.1 (2016-06-21) -- "Bug in Your Hair"
Copyright (C) 2016 The R Foundation for Statistical Computing
Platform: x86_64-pc-linux-gnu (64-bit)

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'citation()' on how to cite R or R packages in publications.

Type 'demo()' for some demos, 'help()' for on-line help, or
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> library(HSAUR2)
Loading required package: tools
> png(filename="/home/ddbj/snapshot/RGM3/R_CC/result/HSAUR2/backpain.Rd_%03d_medium.png", width=480, height=480)
> ### Name: backpain
> ### Title: Driving and Back Pain Data
> ### Aliases: backpain
> ### Keywords: datasets
> 
> ### ** Examples
> 
> 
>   data("backpain", package = "HSAUR2")
>   summary(backpain)
       ID          status    driver    suburban 
 1      :  2   case   :217   no : 86   no :200  
 2      :  2   control:217   yes:348   yes:234  
 3      :  2                                    
 4      :  2                                    
 5      :  2                                    
 6      :  2                                    
 (Other):422                                    
> 
> 
> 
> 
> 
> 
> dev.off()
null device 
          1 
>