Scottish Surveillance of Healthcare Associated Infection Programme (SSHAIP)

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Distribution of SSI rates by category of surgical procedure and duration of procedure -

- Back to National aggregated data on SSI

Distribution of SSI rates by category of surgical procedure and duration of procedure - 5 years from July 2006 to June 2011 in NHSScotland

Procedure Category

Duration of procedure

Number of procedures

Number of SSIs (inpatient)

Inpatient SSI Rate (%)

95% CI Lower

95% CI Upper

Abdominal hysterectomy

<1 hr

964

3

0.31

0.11

0.91

≥1hr and <2 hrs

2680

38

1.42

1.03

1.94

≥2 hrs and <3 hrs

506

12

2.37

1.36

4.10

≥3 hrs

123

8

6.50

3.33

12.31

Not recorded

167

0

0.00

0.00

2.25

Breast surgery

<1 hr

979

2

0.20

0.06

0.74

≥1hr and <2 hrs

1616

5

0.31

0.13

0.72

≥2 hrs and <3 hrs

264

2

0.76

0.21

2.72

≥3 hrs

59

0

0.00

0.00

6.11

Not recorded

154

3

1.95

0.66

5.57

CABG

<1 hr

7

0

0.00

0.00

35.43

≥1hr and <2 hrs

86

3

3.49

1.19

9.76

≥2 hrs and <3 hrs

741

18

2.43

1.54

3.81

≥3 hrs

1765

74

4.19

3.35

5.23

Not recorded

781

38

4.87

3.57

6.61

Caesarean section

<1 hr

56028

273

0.49

0.43

0.55

≥1hr and <2 hrs

7812

66

0.84

0.66

1.07

≥2 hrs and <3 hrs

213

5

2.35

1.01

5.38

≥3 hrs

91

1

1.10

0.19

5.96

Not recorded

3468

22

0.63

0.42

0.96

Cardiac surgery

<1 hr

4

0

0.00

0.00

48.99

≥1hr and <2 hrs

19

0

0.00

0.00

16.82

≥2 hrs and <3 hrs

404

5

1.24

0.53

2.86

≥3 hrs

547

9

1.65

0.87

3.10

Not recorded

291

9

3.09

1.64

5.77

Hip arthroplasty

<1 hr

6615

70

1.06

0.84

1.33

≥1hr and <2 hrs

26859

138

0.51

0.44

0.61

≥2 hrs and <3 hrs

4949

50

1.01

0.77

1.33

≥3 hrs

1174

19

1.62

1.04

2.51

Not recorded

2119

17

0.80

0.50

1.28

Knee arthroplasty

<1 hr

2943

5

0.17

0.07

0.40

≥1hr and <2 hrs

17059

38

0.22

0.16

0.31

≥2 hrs and <3 hrs

2257

8

0.35

0.18

0.70

≥3 hrs

388

1

0.26

0.05

1.45

Not recorded

1228

5

0.41

0.17

0.95

Major vascular surgery

<1 hr

88

6

6.82

3.16

14.09

≥1hr and <2 hrs

234

16

6.84

4.25

10.82

≥2 hrs and <3 hrs

280

7

2.50

1.22

5.07

≥3 hrs

399

16

4.01

2.48

6.41

Not recorded

65

1

1.54

0.27

8.21

Reduction of long bone fracture

<1 hr

88

6

6.82

3.16

14.09

≥1hr and <2 hrs

234

16

6.84

4.25

10.82

≥2 hrs and <3 hrs

280

7

2.50

1.22

5.07

≥3 hrs

399

16

4.01

2.48

6.41

Not recorded

65

1

1.54

0.27

8.21

Repair of neck of femur

<1 hr

1481

23

1.55

1.04

2.32

≥1hr and <2 hrs

1279

17

1.33

0.83

2.12

≥2 hrs and <3 hrs

69

1

1.45

0.26

7.76

≥3 hrs

8

0

0.00

0.00

32.44

Not recorded

62

2

3.23

0.89

11.02