Table 1.

Baseline characteristics of the cohort:

	SBI	No SBI	p-value
Variable	No. (%)*	No. (%)*
Number of participants, No. (%)	193 (100)	1045 (100)
Age, mean (SD), y	74.7 (8.6)	69.8 (8.8)	<0.0001
Body mass index, mean (SD), kg/m2	27.5 (4.8)	28.0 (4.8)	0.23
Male	96 (49.7)	404 (38.7)	0.0039
Race-ethnicity:			0.012
Non-Hispanic White	32 (16.6)	156 (14.9)
Non-Hispanic Black	46 (23.8)	169 (16.2)
Hispanic	108 (56.0)	700 (67.0)
Other	7 (3.6)	20 (1.9)
Received at least high school education	99 (51.3)	479 (45.8)	0.16
Marital status, married	77 (39.9)	448 (42.9)	0.4
Health insurance			0.77
Medicaid or no insurance	89 (46.1)	494 (47.3)
Medicare or private insurance	104 (53.9)	551 (52.7)
Hypertension	151 (78.2)	670 (64.1)	0.0001
Alcohol consumption:			0.32
Never drank	43 (22.3)	210 (20.1)
Past drinker	40 (20.7)	209 (20.0)
Light drinker	18 (9.3)	133 (12.7)
Moderate drinker	78 (40.4)	432 (41.3)
Intermediate drinker	6 (3.1)	41 (3.9)
Heavy drinker	8 (4.2)	20 (1.9)
Physical activity:
None	88 (45.8)	452 (43.8)	0.60
Any	104 (54.2)	580 (56.2)
Diabetes mellitus	38 (19.7)	189 (18.1)	0.60
Smoking:			0.32
Never	82 (42.5)	504 (48.2)
Former	83 (43.0)	396 (37.9)
Current	28 (14.5)	145 (13.9)
Hypercholesterolemia	112 (58.0)	648 (62.0)	0.30
History of coronary heart disease	29 (15.0)	138 (13.2)	0.50
Hamilton Depression Scale, mean (SD)	2.7 (3.4)	3.2 (3.9)	0.10
Mini Mental State, mean (SD)	26.7 (3.4)	26.8 (3.3)	0.77
Spitzer Quality of Life Index score	9.3 (1.1)	9.3 (1.0)	0.73
Number of people known well enough to visit with in their homes:			0.57
None	7 (3.6)	25 (2.4)
1 or 2	22 (11.4)	97 (9.3)
3 or 4	39 (20.2)	210 (20.1)
5 or more	125 (64.8)	713 (68.2)
Number of years living in community	28.6 (17.1)	24.6 (14.3)	0.0007

^*unless otherwise indicated