Table 2 Hospitalization outcomes before and after propensity-score matching

N (unweighted)

1,120

29,759,178

1,084

3,252

N (weighted)

5,515

146,295,097

5,346

15,999

Length of stay (days)

 Mean (SD)

24.5 (32.0)

5.8 (8.3)

< 0.001

18.6

0.4

24.5 (31.9)

8.0 (11.9)

< 0.001

16.5

0.4

 Median (IQR)

14 (6–30)

4 (2–7)

14 (6–30)

4 (2–9)

Mortality (%)

22.2%

3.6%

< 0.001

18.7%

0.6%

22.1%

4.4%

< 0.001

17.7%

0.6%

Discharge type among survivors (%)

< 0.001

< 0.001

 Routine

46.0%

63.3%

46.0%

69.9%

 Short-term hospital

9.6%

2.5%

9.7%

1.8%

 Other transfers³

18.5%

19.3%

18.8%

12.3%

 Home health care

24.8%

14.0%

24.3%

14.8%

 Other/unknown

1.1%

0.9%

1.2%

1.1%

Total Charges

 Mean (SD)

$237,090 ($283,375)

$44,442 ($69,052)

< 0.001

$192,648

$3,816

$237,114 ($285,769)

$71,698 ($114,452)

< 0.001

$165,417

$4,012

 Median (IQR)

$128,682

$25,423

$127,171

$33,958

($48,025 - $303,348)

($13,423 - $48,779)

($47,653-$301,540)

($17,241 -$74,044)

Total Costs

 Mean (SD)

$90,107 ($111,760)

$16,582 ($24,509)

< 0.001

$73,525

$1,505

$90,272 ($112,964)

$25,746 ($41,207)

< 0.001

$64,526

$1,579

 Median (IQR)

$51,170

$9,943

$51,004

$12,327

($17,869 - $112,910)

($5,518 - $18,392)

($17,256 -$112,928)

($6,531 - $27,424)