Table 1 Baseline characteristics of patients with Streptococcal or MSSA PJIs

Age (years)

76 [68–84]^a

73 [65–80]

0.030

Sex (male/female)

41 (48) / 45 (52)

63 (51) / 60 (49)

0.674

ASA score ≥ 3

41 (48)

64 (52)

0.575

Body mass index (kg/m.²)

28 [24-30]

27 [23-30]

0.318

Atrial fibrillation

7 (20)

19 (15)

0.457

Cardiovascular diseases

34 (40)

34 (28)

0.072

Hypertension

57 (66)

76 (62)

0.466

Immunosuppressive therapy

2 (2)

7 (6)

0.315

Rheumatological inflammatory diseases

4 (5)

6 (5)

1.000

Diabetes

10 (11)

25 (20)

0.132

Chronic dermatosis

8 (9)

6 (5)

0.262

Malignancy within the last 5 years

8 (9)

3 (2)

0.054

Renal insufficiency.^b

4 (5)

6 (5)

1.000

Cirrhosis

1 (1)

3 (2)

0.646

Prosthetic knee infection

31 (36)

55 (45)

0.253

Prosthetic hip infection

55 (64)

68 (55)

0.253

Multiple concomitant PJIs

5 (6)

7 (6)

1.000

 Bilateral knee PJIs

2 (2)

4 (3)

1.000

 Bilateral hip PJIs

3 (3)

3 (2)

1.000

Prior PJI-treatment and failure

14 (16)

49 (40)

 < 0.0001

Acute PJIs (lasting < 3 weeks at admission)

42 (49)

45 (37)

0.088

 PJI duration before surgery in our Center (days)

6 [2,3,4,5,6,7,8,9,10,11,12]

7 [4,5,6,7,8,9,10,11,12,13]

0.356

 Postoperative PJI

0

17 (38)

 < 0.0001

 Hematogenous PJI

42 (100)

24 (53)

 < 0.0001

 Unknown

0

4 (9)

0.117

Chronic PJIs (lasting > 3 weeks at admission)

44 (51)

78 (63)

0.088

 PJI duration before surgery in our Center (days)

200 [97–355]

171 [113–330]

0.695

 Postoperative PJIs

2 (5)

30 (38)

0.001

 Hematogenous PJIs

33 (75)

34 (44)

0.001

 Unknown

9 (20)

14 (18)

0.811