Table 4 Sickness absence days 2016–2018 associated with attendance frequency in a negative binomial regression analysis model

 IRR (CI 95%. unadj.)

1.00

2.78 (2.57–3.01)

17.24 (15.17–19.61)

1.00

2.82 (2.65–3.00)

13.01 (11.89–14.98)

1.00

0.76 (0.72–0.81)

4.07 (3.50–4.74)

1.00

1.30 (1.21–1.40)

2.72 (2.16–3.43)

 IRR (CI 95%. adj.)^a

1.00

2.57 (2.38–2.79)

14.80 (13.01–16.84)

1.00

2.45 (2.30–2.60)

10.72 (9.30–12.35)

1.00

1.02 (0.96–1.10)

4.68 (4.02–5.44)

1.00

1.38 (1.28–1.48)

3.20 (2.55–4.01)

 Predicted means (CI 95%. unadj.)

4.18

11.63

72.05

6.06

17.08

78.84

14.53

11.09

59.18

13.62

17.71

37.10

 Predicted means (CI 95%. adj.) ^a

3.84

9.89

56.87

5.74

14.05

61.57

10.47

10.73

49.00

10.9

15.01

34.84

 IRR (CI 95%. unadj.)

1.00

1.77 (1.50–2.09)

15.06 (11.47–19.78)

1.00

2.23 (1.96–2.54)

18.57 (13.78–25.02)

1.00

0.41 (0.36–0.46)

2.52 (1.83–3.46)

1.00

1.17 (1.00–1.37)

2.81 (1.72–4.59)

 IRR (CI 95%. adj.) ^a

1.00

2.10 (1.79–2.52)

17.18 (13.05–22.62)

1.00

1.96 (1.72–2.24)

13.40 (9.92–18.10)

1.00

0.64 (0.55–0.75)

4.07 (2.94–5.65)

1.00

1.31 (1.12–1.53)

3.53 (2.18–5.72)

 Predicted means (CI 95%. unadj.)

1.69

2.99

25.48

1.83

4.08

33.92

5.62

2.28

14.16

4.2

4.92

11.80

 Predicted means (CI 95%. adj.) ^a

1.21

2.57

20.78

1.81

3.55

24.21

3.76

2.41

15.32

3.28

4.31

11.62

 IRR (CI 95%. unadj.)

1.00

5.04 (4.33–5.87)

30.61 (23.94–39.15)

1.00

3.31 (2.94–3.73)

9.88 (7.52–12.99)

1.00

1.00 (0.89–1.13)

6.97 (5.22–9.29)

1.00

1.50 (1.31–1.73)

2.79 (1.79–4.35)

 IRR (CI 95%. adj.) ^a

1.00

4.12 (3.55–4.78)

24.13 (18.97–30.70)

1.00

2.92 (2.59–3.28)

8.59 (6.55–11.27)

1.00

1.46 (1.28–1.65)

8.68 (6.56–11.48)

1.00

1.50 (1.31–1.72)

3.50 (2.29–5.35)

 Predicted means (CI 95%. unadj.)

0.73

3.66

22.20

1.79

5.72

17.67

3.61

3.61

25.13

3.98

6.00

11.10

 Predicted means (CI 95%. adj.) ^a

0.59

2.45

14.35

1.33

3.87

11.40

1.97

2.86

17.02

2.58

3.87

9.03

 IRR (CI 95%. unadj.)

1.00

2.83 (2.55–3.14)

13.84 (11.67–16.41)

1.00

2.89 (2.67–3.14)

11.14 (9.24–13.42)

1.00

0.98 (0.90–1.07)

3.75 (3.07–4.58)

1.00

1.25 (1.13–1.38)

2.61 (1.92–3.54)

 IRR (CI 95%. adj.) ^a

1.00

2.68 (2.42–2.98)

11.46 (9.65–13.61)

1.00

2.69 (2.47–2.92)

9.45 (7.83–11.41)

1.00

1.21 (1.10–1.32)

3.67 (3.01–4.48)

1.00

1.34 (1.22–1.48)

3.15 (2.33–4.24)

 Predicted means (CI 95%. unadj.)

1.76

4.98

24.37

2.45

7.07

27.25

5.30

5.20

19.89

5.44

6.78

14.19

 Predicted means (CI 95%. adj.) ^a

1.62

4.34

18.51

2.23

6.00

21.12

4.05

4.88

14.87

4.38

5.87

13.77