Functionality of disengagement in old age.
D000367:Age Factors; D000368:Aged; D005006:Ethnicity; D005260:Female; D006262:Health; D006801:Humans; D007182:Income; D008297:Male; D008875:Middle Aged; D009013:Morale; D010551:Personality; D011581:Psychological Tests; D012737:Sex Factors; D012923:Social Class; D012934:Social Isolation