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Table 2 Patient characteristics post-matching

From: The prevalence and burden of systemic lupus erythematosus in a medicare population: retrospective analysis of medicare claims

Characteristic

SLE cohort

Non-SLE cohort-matched controls

N = 6707

N = 13,414

Disability benefits, %

49.9

49.9

Mean age, years

61

61

Female, %

86.0

86.0

Race, %

  

White

73.1

73.1

Black

20.3

20.3

Other

6.6

6.6

Region, %

  

Northeast

16.4

16.4

Midwest

19.5

19.5

South

45.5

45.5

West

16.9

16.9

Other

1.7

1.7

Index year, %

  

2003

81.1

79.6

2004

7.6

7.5

2005

6.1

6.3

2006

5.2

6.7

  1. No significant differences between groups.