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Table 1 Patient demographics in acute postsurgical and hematogenous PJI

From: Worse outcome of debridement, antibiotics, and implant retention in acute hematogenous infections than in postsurgical infections after total knee arthroplasty: a multicenter study

 

Acute postsurgical PJI (n = 34)

Acute hematogenous PJI (n = 67)

Total PJI (n = 101)

p-Value

Age (years)

75 ± 6.9

74 ± 9.2

74 ± 8.5

0.511

Female

26 (76)

55 (82)

81 (80)

0.503

BMI (kg/m2)

25.0 ± 3.4

27.7 ± 5.0

26.8 ± 4.6

0.003

Diabetes

9 (26)

39 (58)

48 (48)

0.003

CCI

3.6 ± 1.0

3.7 ± 1.4

3.6 ± 1.3

0.686

KLIC score

3.2 ± 1.3

3.6 ± 1.4

3.4 ± 1.4

0.198

Symptom duration (days)

6.8 ± 6.8

8.3 ± 8.2

7.8 ± 7.8

0.360

Operation

    

 Primary

30 (88)

59 (88)

89 (88)

1.000

 Revision

4 (12)

8 (12)

12 (12)

Implant age (Month)*

0.0 (0.0–1.0)

16.0 (8.0–43.5)

9.0 (1.0–35.0)

 < 0.001

Preoperative CRP

11.0 ± 9.7

13.6 ± 10.5

12.72 ± 9.75

0.211

Type of organism

    

 Staphylococcus aureus

6 (18.2)

15 (22.4)

21 (21)

0.585

 Antibiotic resistant (MRSA, MRSE)

8 (24.2)

9 (13.4)

17 (17)

 Streptococcus

5 (15.2)

15 (22.4)

20 (20)

 Enterococcus

1 (3.0)

1 (1.5)

2 (2)

 Candida

2 (6.1)

1 (1.5)

3 (3)

 Gram negative

2 (6.1)

9 (13.4)

11 (11)

 Polymicrobial

1 (3.0)

3 (4.5)

4 (4)

Culture negative

8 (24.2)

14 (20.9)

22 (22)

  1. Data are presented as mean and standard deviation or number and percentage in parentheses
  2. PJI periprosthetic joint infection, n number, CCI Charlson comorbidity index, CRP C-reactive protein, MRSA methicillin-resistant Staphylococcus aureus, MRSE methicillin-resistant Staphylococcus epidermidis
  3. *Data of implant age are presented as median and interquartile range in parentheses