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Table 2 Demographics of patients in PJI cohort (n = 98) and aseptic cohort (n = 165)

From: The 2018 new definition of periprosthetic joint infection improves the diagnostic efficiency in the Chinese population

Variable

Overall (n = 263)

PJI cohort (n = 98)

Aseptic cohort (n = 165)

p value

Age

61.4 (12.1)

63.1 (13.5)

60.4 (14.1)

0.084

Gender (male)

116 (44.1%)

47 (48.0%)

69 (41.8%)

0.332

Joint (knee)

75 (28.5%)

40 (40.8%)

35 (21.2%)

0.001*

Time from last surgery (yr)

8.4 (5.9)

4.1 (4.5)

10.2 (6.8)

< 0.001*

Most recent surgery a revision procedure

51 (19.4%)

27 (27.6%)

24 (14.5%)

0.01*

History of rheumatoid arthritis and ankylosing spondylitis

24 (9.1%)

5 (5.1%)

19 (11.5%)

0.081

History of malignancy

12 (4.6%)

3 (3.1%)

9 (5.5%)

0.368

History of diabetes

39 (14.8%)

21 (21.4%)

18 (10.9%)

0.02*

  1. Quantitative data is presented as mean (standard deviation). Qualitative data is presented as number (%)
  2. yr year
  3. *p < 0.05: statistically significant