Publication |
Author(s) | Pitkälä, K.H.; Laakkonen, M.L.; Strandberg, T.E. |
Title | Positive Life Orientation as a Predictor of 10-Year Outcome in an Aged Population. |
Source | Journal of Clinical Epidemiolgy, 2004, Vol. 57, 409 - 414 |
DOI | DOI:10.1016/j.jclinepi.2003.07.013 |
Investigation |
Public | 75-85 aged, Helsinki, Finland followed 1989-1999, ( T1 1989, T2 1994, T3 1999) |
| T1 1989, T2 1994, T3 1999 |
Survey name | Not available |
| Helsinki Aging Study |
Sample | Probability stratified sample |
| Random samples of persons aged 75, 80 and 85 |
Respondents N = | 491 |
Non Response | 18% |
| Non-response at T1 24,6%. Incomplete responses (6,6%) left out |
Assesment | Interview: face-to-face |
| Also postal questionnaire and clininal examination. |
Happiness measure(s) used |