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. Author manuscript; available in PMC: 2013 Sep 23.
Published in final edited form as: Psychol Aging. 2010 Dec;25(4):858–866. doi: 10.1037/a0019622

Table 1.

Comparison of non-completers and completers at baseline

Non-completers (N = 403) Completers (N = 115)
M (SD) M (SD)

Age*** 71.01 (8.15) 66.89 (7.18)
Years of education** 13.48 (2.72) 14.26 (2.93)
Sleep quality 5.12 (3.05) 4.88 (2.73)
Psychological well-being
    Positive relations with others 68.19 (10.14) 68.12 (10.36)
    Autonomy 62.06 (9.41) 62.32 (9.98)
    Environmental mastery 64.38 (9.62) 65.34 (9.50)
    Personal growth*** 66.26 (9.04) 70.17 (9.70)
    Purpose in life 64.23 (9.71) 65.98 (10.30)
    Self-acceptance 62.65 (11.16) 64.02 (11.23)
Psychological distress
    Depression 12.01 (8.45) 10.57 (7.46)
    Anxiety 19.38 (5.63) 19.04 (5.48)
Health
    Subjective health*** 5.11 (1.16) 5.50 (0.92)
    Number of illnesses*** 2.74 (2.0) 2.03 (1.73)
*

p < .05.

**

p < .01.

***

p < .001.