Table 2: Risk factors associated with SSI in primary hip arthroplasty - Belo Horizonte, 2007-2011.

Features

Surgical Site Infection

Total

p

Odds Ratio

Yes

No

n = 5

%

n = 20

%

n = 25

%

Estimative

IC 95%

Sex

Male

4

28.6

10

71.4

14

56.0

0.341

(ref)

Female

1

9.1

10

90.9

11

44.0

4.0

0.4-42.4

Age (Years)

< 50

2

20.0

8

80.0

10

40.0

0.400

(ref)

50 a 64

2

28.6

5

71.4

7

28.0

0.6

0.1-6.0

65 a 79

0

0.0

6

100.0

6

24.0

-

-

≥ 80

1

50.0

1

50.0

2

80.0

0.3

0.01-6.0

Obesity

1

16.7

5

83.3

6

30.0

1

1.2

0.1-16.4

Diabetes mellitus

1

50.0

1

50.0

2

8.0

0.367

4.7

0.2-93.0

Smoking

0

0.0

3

100.0

3

13.0

1

-

-

Preoperative hospitalization < 24 h

3

16.7

15

83.3

18

72.0

0.597

0.5

0.1-3.9

Surgery time > 150 minutes

1

14.3

6

85.7

7

28.0

1

0.6

0.1-6.4

Preoperative bathing

4

18.2

18

81.8

22

91.7

0.380

0.2

0.01-4.4

Prophylactic TBA 30 to 60 minutes before the surgery incision

2

10.5

17

89.5

19

79.2

0.179

0.2

0.02-1.8

Prophylactic TBA with 24 suspended

4

17.4

19

82.6

23

95.8

1

-

-