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Insights into Imaging

Table 3 Overall results: ordinal regression analysis

From: Visual grading characteristics and ordinal regression analysis during optimisation of CT head examinations

Omnibus test

 

Likelihood ratio Chi-square

df

p-value

Philips Brilliance

170.19

6

0.00

GE BrightSpeed

310.00

6

0.00

Tests of model effects

Type III

Source

Wald chi-square

df

p-value

Philips Brilliance

   

DLP

1.25

1

0.26

Criteria

1.25

1

0.26

Protocol

44.53

1

0.00

GE BrightSpeed

   

DLP

0.02

1

0.90

Criteria

11.81

1

0.00

Protocol

278.47

4

0.00

  1. Dependent variable: rating score
  2. Model: (Threshold), DLP, criteria, protocol
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