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Table 1 Demographics, socioeconomic characteristics, and comorbidity status among cancer hospitalizations categorized by insurance type

From: Relationship between insurance status and interhospital transfers among cancer patients in the United States

Variable

Private

n = 2,270,429 (63.4%)

Medicare

n = 413,820 (11.5%)

Medicaid

n = 680,142 (18.9%)

Uninsured

n = 216,516

(6.0%)

All Insurance

n = 3,580,908

(100%)

P value

Age, median (IQR)

54.6 (47.5–59.6)

57.1 (51.6–61.1)

52.2 (44.1–57.9)

52.9 (45.7–58.5)

54.4 (47.1–59.5)

< 0.001

Female, % (SE)

51.4% (0.2)

49.4% (0.2)

54.1% (0.1)

48.1% (0.2)

51.5% (0.1)

 

Race, % (SE)

     

< 0.001

White

69.6% (0.5)

61.8% (0.6)

46.4% (0.7)

49.6% (1.2)

63.1% (0.5)

 

Black

9.8% (0.2)

20.1% (0.3)

21.7% (0.4)

18.0% (0.7)

13.7% (0.2)

 

Hispanic

6.7% (0.2)

7.6% (0.2)

16.9% (0.7)

19.3% (0.8)

9.5% (0.2)

 

Other or unknown

13.7% (0.5)

10.3% (0.5)

14.8% (0.5)

12.9% (0.7)

13.5% (0.5)

 

Median household income, % (SE)

     

< 0.001

Quartile 1

18.8% (0.3)

37.4% (0.4)

40.0% (0.4)

37.9% (0.6)

26.0% (0.3)

 

Quartile 2

22.5% (0.3)

26.4% (0.2)

26.2% (0.2)

26.7% (0.4)

23.9% (0.2)

 

Quartile 3

26.9% (0.2)

21.4% (0.2)

20.9% (0.2)

21.8% (0.3)

24.8% (0.1)

 

Quartile 4

31.6% (0.6)

14.5% (0.3)

12.7% (0.3)

13.5% (0.4)

25.0% (0.5)

 

Interhospital transfer, % (SE)

1.7% (0.0)

2.5% (0.0)

2.6% (0.0)

2.8% (0.1)

2.0% (0.0)

< 0.001

Elixhauser’s comorbidity index, median (IQR)

1.0 (0.0–2.1)

2.2 (1.0–3.6)

1.5 (0.4–2.8)

1.2 (0.2–2.5)

1.1 (0.1–2.5)

< 0.001

  1. Abbreviations: SE standard error, IQR interquartile range
  2. Rao-Scott chi-square tests were used for comparing categorical variables and Kruskal-Wallis test for continuous variables