R: Longitudinal data on cognitive and physical aging in the...
paquid
R Documentation
Longitudinal data on cognitive and physical aging in the elderly
Description
The dataset consists in a subsample of the Paquid prospective cohort study. Repeated measures cognitive measures (MMSE, IST, BVRT psychometric tests), physical dependency (HIER) and depression sympatomatology (CESD) were collected over a maximum period of 20 years along with dementia information (age at dementia diagnosis, dementia diagnosis information). Time-independent socio-demographic information is also provided (CEP, male, age_init).
Usage
paquid
Format
A data frame with 2250 observations over 500 subjects and 12 variables:
ID
subject identification number
MMSE
score at the Mini-Mental State Examination (MMSE), a psychometric test of global cognitive functioning (integer in range 0-30)
BVRT
score at the Benton Visual Retention Test (BVRT), a psychometric test of spatial memory (integer in range 0-15)
IST
score at the Isaacs Set Test (IST) truncated at 15 seconds, a test of verbal memory (integer in range 0-40)
score of a short self-report scale CES-D designed to measure depressive symptomatology in the general population (integer in range 0-52)
age
age at the follow-up visit
dem
indicator of positive diagnosis of dementia
agedem
age at dementia diagnosis for dem=1 and at last contact for dem=0
age_init
age at entry in the cohort
CEP
binary indicator of educational level (CEP=1 for subjects who graduated from primary school; CEP=0 otherwise)
male
binary indicator for gender (male=1 for men; male=0 for women)
References
Letenneur, L., Commenges, D., Dartigues, J. F., & Barberger-Gateau, P. (1994). Incidence
of dementia and Alzheimer's disease in elderly community residents of southwestern
France. International Journal of Epidemiology, 23 (6), 1256-61.