dataCog {nlive} | R Documentation |
The dataCog contains 1200 individuals with one line per visit. Repeated measures of global cognition (cognition) were collected over a maximum period of 30 years. Information on the age at death is also provided (ageDeath, ageDeath90).
A data frame with 11867 observations over 1200 subjects and 5 variables:
subject identification number
the retrospective (negative) time before death (in years)
composite score of global cognition
age at death (in years)
age at death centered by the mean
summary(dataCog)