Case (n = 68)

Control (n = 136)

Continuous variables

Mean/Median

DP/IQ

Mean/Median

DP/IQ

p

Hospital stays (days)

34.8/35

17.2/22

23.8/22

11.5/14

<0.001

ICU stays (days)

25.4/23

15.5/19

16.8/16

6.8/10

<0.001

Estimated mortality

percentage-APACHE-II

45.3/47

21.3/27

41.9/40

21.7/31

0.200

Number of morbidities

1.4/1

1.3/2

1.3/1

1.3/2

0.570

CVC Days

28.7/25

15.2/20

18.8/18

9.5/12

<0.001

SVD Days

30.9/29

16.1/21

21.1/20

10.2/13

<0.001

VM Days

21.4/17

15.6/17

11.9/12

8.6/13

<0.001

Categorical variables

n

%

n

%

p

Form of hospital admission

<0.001

Community

36

52.9

115

84.6

Transfer of another

health unit

32

47.1

21

15.4

Recent prior

0.011

hospitalization

No

33

48.5

91

66.9

Yes

35

51.5

45

33.1

Colonization

<0.001

No

43

63.2

128

94.1

Yes

25

36.8

8

5.9

Surgical procedure

0.013

No

32

47.1

90

66.2

Yes

36

52.9

46

33.8

Hemodialysis

0.468

No

47

69.1

102

75.0

Yes

21

30.9

34

25.0

Enteral tube

0.011

No

2

2.9

22

16.2

Yes

66

97.1

114

83.8

Use of previous antimicrobial

0.265

No

2

2.9

11

8.1

Yes

66

97.1

125

91.9