Table 1: Patient demographic, clinical, and administrative characteristics at index hospitalization (n = 12,207).

Variables

N (%) or Mean SD

Demographic Variables

Age

75.93 13.23

Age 19-64

2,339 (19.2)

Age 65-85

6,758 (55.4)

Age 86 and older

3,110 (25.5)

Female

6,281 (51.5)

Urban residents

5,457 (44.7)

Median household income national quartile

First Quartile

2,891 (23.7)

Second Quartile

6,183 (50.7)

Third Quartile

2,109 (17.3)

Fourth Quartile

919 (7.5)

Primary payer on index visit

Medicare

10,082 (82.6)

Medicaid

359 (2.9)

Other*

1,766 (14.5)

Clinical Variables

Length of stay for index hospitalization

5.33 4.95

Total length of stay in 2009

7.81 8.26

Had major operation procedure on index visit

2,479 (20.3)

Mortality rate during index hospitalization

570 (4.7%)

Selected Comorbidities

 

Hypertension

5,809 (47.6)

Chronic pulmonary disorders

3,331 (27.3)

Diabetes

3,286 (26.9)

Fluid and electrolyte disorders

2,732 (22.4)

Renal failure

2,412 (19.8)

Blood disorders

2,054 (16.8)

Hypothyroidism

1,099 (9.0)

Obesity

830 (6.8)

Other neurological disorders

718 (5.9)

Valvular disease

623 (5.1)

Peripheral vascular disorders

614 (5.0)

Depression

467 (3.8)

First diagnosis of heart failure

3,020 (24.7)

First or second diagnosis of heart failure

5,682 (46.6)

Administrative Variables

Total charges of index hospitalization

36,211.82 47,612.04

$776 to $10,000

2,593 (21.2)

$10,001 to $20,000

3,286 (26.9)

$20,001 to $40,000

3,082 (25.3)

$40,001 to $769,063

3,246 (26.6)

Total charges of all hospitalizations in 2009

50,877.31 64,162.06

Admissions from from non-healthcare settings (e.g., home)

10884 (89.16)

 

*Other included private payer, self-pay, and other federal and state health insurers