Table 4

Deviance information criteria (DICs) for models without a latent autocorrelation structure but with trend (Poisson GLMs).

Model

Total

Total surgical

Total medical

EFE

Grass sickness

Large colon impaction

Large colon displacement

Lipoma


No seasonality, no trend

796.18

728.37

645.77

280.79

329.39

429.29

513.58

422.95

12-month seasonality, no trend

793.62

729.59

645.22

258.15

289.65

411.25

513.64

425.78

12- and 6-month seasonality, no trend

773.29

721.87

633.73

255.35

277.67

414.21

500.42

429.93

No seasonality, trend

740.80

704.58

613.87

282.11

324.70

422.58

480.01

413.20

12-month seasonality, trend

735.36

704.83

611.45

259.15

284.20

403.98

478.60

415.88

12- and 6-month seasonality, trend

717.63

698.06

601.9

256.60

272.58

407.02

466.76

419.74


A lower DIC statistic can be considered to represent a better model.

Archer et al. BMC Veterinary Research 2006 2:27   doi:10.1186/1746-6148-2-27

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