PAQUID is a prospective cohort study initiated in 1988 in South Western France to explore functional and cerebral ageing. This sample includes n=2561 subjects. Data contains a time-to-event, a type of event and two cognitive scores measured at baseline.
A data frame with 2561 observations on the following 4 variables.
the time-to-event (in years).
the type of event
0 = censored,
1 = dementia onset and
2 = death without dementia.
score at the Digit Symbol Substitution Score Test. This test explores attention and psychomotor speed.
score at the Mini Mental State Examination. This test is often used as an index of global cognitive performance.
The data have been first made publicly available via the package timeROC.
Dartigues, J., Gagnon, M., Barberger-Gateau, P., Letenneur, L., Commenges, D., Sauvel, C., Michel, P., and Salamon, R. (1992). The paquid epidemiological program on brain ageing. Neuroepidemiology, 11(1):14–18.
Blanche, P., Dartigues, J. F., & Jacqmin-Gadda, H. (2013). Estimating and comparing time-dependent areas under receiver operating characteristic curves for censored event times with competing risks. Statistics in Medicine, 32(30), 5381-5397.
Add the following code to your website.
For more information on customizing the embed code, read Embedding Snippets.