Table 1.

Sample Characteristics

Variable	Count weighted (%)	Population count	Weighted annual average number ED visits
Age
≥75	463 (26.7)	974,012	0.82
<75	1,731 (73.3)	2,676,029	0.99
Sex
Men	637 (31.9)	1,163,312	0.97
Women	1,557 (68.1)	2,486,729	0.93
Race
White	1,922 (85.9)	3,134,584	0.92
Other	272 (14.1)	515,457	1.09
Living
Alone	930 (39.0)	1,424,356	0.93
Not alone	1,264 (61.0)	2,225,685	0.95
Medicaid
Yes	484 (22.7)	826,697	1.24
No	1,710 (77.4)	2,823,344	0.85
PCP
Yes	2,069 (96.5)	3,437,845	0.94
No	75 (3.5)	116,712	1.06
Adult child
In home	403 (18.4)	625,171	1.10
Not in home	1,791 (81.6)	3,024,869	0.91
Cancer
Yes	293 (9.2)	334,754	1.03
No	1,996 (90.8)	3,303,159	0.93
Heart disease
Yes	1,167 (55.8)	1,593,793	1.09
No	997 (44.2)	2,015,269	0.76
Stroke
Yes	201 (9.5)	344,467	1.05
No	1,981 (90.5)	3,286,174	0.92
COPD
Yes	179 (9.3)	338,282	1.12
No	2,009 (90.7)	3,299,410	0.92
Cognitive impairment
Yes	695 (29.8)	1,088,784	1.16
No	1,499 (70.2)	2,561,256	0.85
Diabetes
Yes	527 (28.0)	1,018,314	1.13
No	1,661 (72.0)	2,620,443	0.87
ADL
1–2	1,545 (69.8)	2,547,649	0.84
3–5	649 (30.2)	1,102,392	1.18
Unmet need
Yes	472 (22.5)	822,391	1.19
No	1,722 (77.5)	2,827,649	0.87

ADL = activity of daily living; COPD = chronic obstructive pulmonary disease; ED = emergency department; PCP = primary care provider.