Table 2 Rates, adjusted rate ratios and association of outcomes between the best and worst performers within hospital peer groups

 Principal referral (A1)

17

11.0

22.9

2.09

(2–2.19)

^b

7.7 %

13.8 %

1.93

(1.64–2.27)

^b

−0.38

(-0.76–0.19)

 Major metro- & non-metropolitan (B)

22

6.8

12.6

1.70

(1.58–1.84)

^b

6.9 %

15.0 %

2.13

(1.73–2.63)

^b

−0.22

(-0.59–0.22)

 District group 1 (C1)

13

5.8

11.7

2.02

(1.77–2.31)

^b

5.9 %

20.5 %

3.77

(2.41–5.91)

^b

−0.35

(-0.76–0.25)

 District group 2 (C2)

30

2.8

10.4

2.94

(2.39–3.62)

^b

4.7 %

14.7 %

3.47

(1.94–6.19)

^b

0.04

(-0.33–0.39)

 Major (21)

10

4.0

24.7

5.33

(4.62–6.16)

^b

1.4 %

10.5 %

6.23

(4.25–9.13)

^b

−0.63

(-0.9–0.01)

^a

 District (22)

12

6.0

14.3

2.44

(2.05–2.9)

^b

2.8 %

12.3 %

5.72

(3.1–10.58)

^b

−0.82

(-0.95–0.46)

^b

 Principal referral (A1)

17

3.3

7.6

2.24

(1.75–2.87)

^b

1.3 %

18.3 %

15.65

(3.73–65.58)

^b

−0.08

(-0.61–0.49)

 Major metro- & non-metropolitan (B)

22

2.3

4.5

2.03

(1.59–2.58)

^b

0.0 %

20.1 %

0.29

(-0.15–0.63)

 District group 1 (C1)

13

1.5

5.5

4.32

(2.72–6.86)

^b

4.0 %

20.0 %

5.81

(1.58–21.41)

^b

−0.36

(-0.76–0.23)

 District group 2 (C2)

30

2.3

7.0

3.65

(2.64–5.06)

^b

0.0 %

27.8 %

−0.13

(-0.47–0.24)

 Major (21)

10

5.1

13.6

2.52

(1.48–4.29)

^b

1.1 %

20.0 %

0.32

(-0.39–0.79)

 District (22)

12

3.6

12.9

3.88

(2.55–5.92)

^b

4.6 %

16.7 %

2.57

(0.66–9.97)

−0.67

(-0.9–0.16)

^a

 Principal referral (A1)

17

11.8

25.0

2.12

(2.02–2.22)

^b

8.9 %

14.0 %

1.74

(1.52–1.99)

^b

−0.38

(-0.76–0.19)

 Major metro- & non-metropolitan (B)

22

7.9

14.3

1.74

(1.61–1.88)

^b

7.2 %

14.7 %

2.01

(1.62–2.49)

^b

−0.21

(-0.58–0.23)

 District group 1 (C1)

13

7.2

13.7

1.88

(1.63–2.16)

^b

5.8 %

20.8 %

4.11

(2.5–6.75)

^b

−0.30

(-0.73–0.3)

 District group 2 (C2)

30

2.9

14.7

3.75

(2.83–4.98)

^b

3.8 %

14.9 %

4.37

(2.06–9.26)

^b

0.05

(-0.32–0.4)

 Major (21)

10

3.6

25.0

6.07

(5.2–7.09)

^b

1.7 %

11.2 %

5.88

(3.77–9.18)

^b

−0.36

(-0.81–0.35)

 District (22)

12

5.9

11.8

2.37

(1.99–2.81)

^b

2.2 %

11.3 %

6.88

(3.24–14.62)

^b

−0.72

(-0.92–0.25)

^b