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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

From: Differentiating intraprofessional attitudes toward paradigms in health care delivery among chiropractic factions: results from a randomly sampled survey

   Wald 95% confidence limits on OR    
Model number and predictors Odds-ratio (P value) Lower Upper Model AIC Log likelihood Likelihood ratio χ2(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 -152.23 13.4 (<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) 1.65 5.42