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Table 2

Sequential logistic regression analysis of variables predicting “Orthodox/Unorthodox” variable (n = 459); X 2 (where applicable) directly compares the model through a likelihood ratio test with the previous model

  Wald 95% confidence limits on OR   
Model number and predictors
Odds-ratio (P value)
Lower
Upper
Model AIC
Log likelihood
Likelihood ratio χ 2 (P value) (df = 1)
Model 1.1
Non-evidence-based treatment choices (1/0)
9.00 (<0.0001)
5.02
16.15
377.0
-186.50
 
Model 1.2
Non-guidelines-based x-ray use (1/0)
6.10 (<0.0001)
3.62
10.27
394.6
-195.30
 
Model 1.3
Negative vaccination attitude (3–15)
1.55 (<0.0001)
1.40
1.72
353.1
-174.56
 
Model 2.1
Negative vaccination attitude (3–15)
1.44 (<0.0001)
1.30
1.60
323.9
-158.95
31.2 (<0.0001)
Non-evidence-based treatment choices (1/0)
5.37 (<0.0001)
2.87
10.04
Model 2.2
Negative vaccination attitude (3–15)
1.41 (<0.0001)
1.27
1.57
312.5-152.2313.4 (<0.0002)
Non-evidence-based treatment choices (1/0)
4.18 (<0.0001)
2.19
7.98
Non-guidelines-based x-ray use (1/0)2.99 (<0.0001)1.655.42
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