Study Xu & Wu (1988): study CN 1986
- Public:
- 55+ aged, Being China, 198?
- Sample:
- Respondents:
- N = 175
- Non Response:
- Assessment:
-
Questionnaire: paper
Self completed and administered in personal interviews
Correlate
- Authors's label
- Health status
- Our Classification
-
-
- Operationalization
- Self report. Precise question(s) not reported