Post-Coma Recovery of IQ — Wong • carData

The Wong data frame has 331 row and 7 columns. The observations are longitudinal data on recovery of IQ after comas of varying duration for 200 subjects.

Wong

Format

This data frame contains the following columns:

id: patient ID number.
days: number of days post coma at which IQs were measured.
duration: duration of the coma in days.
sex: a factor with levels Female and Male.
age: in years at the time of injury.
piq: performance (i.e., mathematical) IQ.
viq: verbal IQ.

Details

The data are from Wong, Monette, and Weiner (2001) and are for 200 patients who sustained traumatic brain injuries resulting in comas of varying duration. After awakening from their comas, patients were periodically administered a standard IQ test, but the average number of measurements per patient is small (331/200 = 1.7).

Source

Wong, P. P., Monette, G., and Weiner, N. I. (2001) Mathematical models of cognitive recovery. Brain Injury, 15, 519–530.

References

Fox, J. (2016) Applied Regression Analysis and Generalized Linear Models, Third Edition. Sage.

Examples

summary(Wong)
#>        id            days            duration         sex           age        
#>  Min.   : 405   Min.   :   13.0   Min.   :  0.0   Female: 71   Min.   : 6.513  
#>  1st Qu.:3808   1st Qu.:   59.0   1st Qu.:  1.0   Male  :260   1st Qu.:21.737  
#>  Median :5085   Median :  150.0   Median :  7.0                Median :26.877  
#>  Mean   :4735   Mean   :  481.9   Mean   : 14.3                Mean   :31.853  
#>  3rd Qu.:5712   3rd Qu.:  416.0   3rd Qu.: 16.0                3rd Qu.:40.923  
#>  Max.   :7548   Max.   :11628.0   Max.   :255.0                Max.   :80.033  
#>       piq              viq        
#>  Min.   : 50.00   Min.   : 64.00  
#>  1st Qu.: 77.00   1st Qu.: 85.00  
#>  Median : 87.00   Median : 94.00  
#>  Mean   : 87.56   Mean   : 94.96  
#>  3rd Qu.: 97.00   3rd Qu.:105.00  
#>  Max.   :133.00   Max.   :132.00