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Table 1 Baseline characteristics of 113 patients presenting methicillin-resistant Staphylococcus aureus bloodstream infections

From: Pandemic clone USA300 in a Brazilian hospital: detection of an emergent lineage among methicillin-resistant Staphylococcus aureus isolates from bloodstream infections

Clinical characteristics

MSSA (N = 78)

MRSA (N = 35)

TOTAL (N = 113)

p value

Gender, n (%) = male

41 (52.6)

19 (54.3)

60 (53.1)

1.00

Age (years), mean (range)

58.4 (18–98)

64.5 (39–87)

62 (18–98)

0.03

Underlying comorbidities, n (%)

    

Diabetes

22 (28.2)

11 (31.4)

33 (29.2)

0.83

Previous neutropenia

2 (2.6)

3 (8.6)

5 (4.4)

0.33

Acute renal insufficiency

3 (3.8)

3 (8.6)

6 (5.3)

0.38

End stage renal disease

35 (44.9)

8 (22.9)

43 (38.0)

0.16

Cardiopathy

56 (71.8)

21 (60.0)

77 (68.1)

0.62

Pneumopathy

5 (6.4)

7 (20.0)

12 (10.6)

0.10

Neurologic disease

7 (8.9)

2 (5.7)

9 (8.0)

0.72

Hepatopathy

6 (7.7)

6 (17.1)

12 (10.6)

0.20

Renal replacement therapy

30 (38.5)

8 (22.9)

38 (33.6)

0.30

Solid cancer

12 (15.4)

7 (20.0)

19 (16.8)

0.60

Hematologic cancer

1 (1.3)

4 (11.4)

5 (4.4)

0.04

Autoimmune disease

1 (1.3)

3 (8.6)

4 (3.5)

0.09

Solid organ transplant

11 (14.1)

3 (8.6)

14 (12.4)

0.55

Previous BSI

11 (14.1)

7 (20.0)

18 (15.9)

0.59

Acquisition, n (%)

    

HA-BSI

35 (44.9)

26 (74.6)

61 (53.9)

0.02

CA-BSI

22 (28.2)

5 (14.3)

27 (23.9)

 

HCA-BSI

21(26.9)

4 (11.4)

25 (22.1)

 

Infection source, n (%)

    

Central line vascular catheter

42 (53.8)

21 (60.0)

63 (55.8)

0.5

Pulmonary

5 (6.4)

1 (2.9)

6 (5.3)

 

SSTI

18 (23.1)

10 (28.6)

28 (24.8)

 

Primary bacteremia

13 (16.7)

3 (8.6)

16 (14.2)

 

Outcome, n (%)

    

Death

31 (39.7)

19 (54.3)

50 (44.2)

0.15

  1. p values in bold were considered statistically significant
  2. MSSA, Methicillin-susceptible Staphylococcus aureus; MRSA, Methicillin-resistant Staphylococcus aureus; BSI, Bloodstream infection; HA, Hospital-acquired; CA, Community-acquired; HCA, Healthcare-associated; SSTI, Skin and soft tissue infection, ND, Not determined; A value of p ≤ 0.05 was considered statistically significant; Only the first episode was considered for patients that presented two BSI episodes