Table 1.

Two clusters of characteristics based on cluster analysis of the oldest old sub-sample.

Characteristic	Cluster I	Cluster II
Age	89	93
Education	Graduate education	Undergraduate education
Co-morbidities	Moderate health conditions	Major health conditions
Experience with computers	Some experience	Some experience
Self-rated health	Good	Good
Functional status	Good	Good
Cognition	Minor cognitive changes	Moderate cognitive changes
Perceived social support	Strong	Weak