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Table 1 Baseline characteristics of patients who underwent THA before and after 1:1 propensity score matchinga

From: The impact of systemic lupus erythematosus on the risk of infection after total hip arthroplasty: a nationwide population-based matched cohort study

 

Before match

 

After match

 

SLE

Control

P value

SLE

Control

P value

(n = 617)

(n = 2414)

(n = 325)

(n = 325)

Age

38.7 ± 12.7

56.7 ± 14.5

< 0.01

44.3 ± 12.0

46.1 ± 14.0

0.07

Female

503 (81.5%)

999 (41.4%)

< 0.01

237 (72.9%)

237 (72.9%)

1.00

Comorbidities

 Cerebral vascular accidents

39 (6.3%)

247 (10.2%)

< 0.01

27 (8.3%)

17 (5.2%)

0.11

 Coronary heart disease

46 (7.5%)

412 (17.1%)

< 0.01

45 (13.8%)

35 (10.7%)

0.09

 Congestive heart failure

38 (6.2%)

120 (5%)

0.26

19 (5.8%)

11 (3.4%)

0.13

 Chronic obstructive pulmonary disease

59 (9.6%)

320 (13.3%)

< 0.01

43 (13.2%)

35 (10.8%)

0.11

 Diabetes mellitus

28 (4.5%)

450 (18.6%)

< 0.01

27 (8.3%)

22 (6.8%)

0.45

 Cirrhosis

7 (1.1%)

122 (5.1%)

< 0.01

3 (0.9%)

5 (1.5%)

0.48

 Chronic kidney disease

87 (14.1%)

71 (2.9%)

< 0.01

29 (8.9%)

20 (6.2%)

0.10

 Dialysis

30 (4.9%)

13 (0.5%)

< 0.01

9 (2.8%)

5 (1.5%)

0.28

CCI_Score

2.49 ± 1.51

1.58 ± 1.78

< 0.01

2.37 ± 1.42

1.36 ± 1.71

< 0.01

  1. CCI Charlson comorbidity index, SLE systemic lupus erythematosus
  2. aData are presented as number and percentage or mean ± standard deviation