Table 1. Sample characteristics.

	Mean	s.d.	Observed range	Possible range
Age (years)	69.68	6.75	55–81	—
Education (years)	15.01	2.56	10–20	—
Gender (% female)	71%	—	—	—
CES-D⩾16 (N)	2	—	—	—
CES-D total	5.88	4.79	0–20	0–60
Depressed mood	1.02	1.67	0–6	0–21
Somatic	2.39	2.18	0–9	0–21
Lack of positive affect	2.34	3.11	0–12	0–12
Interpersonal difficulties	0.10	0.37	0–2	0–6
Medical comorbidities (N)
Hypertension	12	—	—	—
High cholesterol	17	—	—	—
Arthritis	7	—	—	—

Abbreviation: CES-D, Center for Epidemiologic Studies Depression Scale.