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Table 8 Backwards stepwise logistic regression analysis whether sharing decision making with patients is considered an important principle

From: Elective surgical referral guidelines - background educational material or essential shared decision making tool? A survey of GPs' in England

Variable Coefficient B Standard Error of B Wald Statistic Degrees of freedom Sig. Odds Ratio Exp(B) 95% C.I. for EXP(B)
        Lower Upper
Gender (1 = male,
0 = female)
1.643 .830 3.916 1 .048 5.171 1.016 26.322
GP practice size
(0 = 3 or less, 1 = 4 or more)
1.673 .672 6.189 1 .013 5.327 1.426 19.898
Constant -4.222 .917 21.184 1 .000 .015   
  1. a. Variable(s) entered on step 1: gender, age, GP size, Personal list size.
  2. Likelihood ratio test χ2 (2) = 9.65, p = 0.008, Cox and Snell R2 = 0.077, Nagelkerke R2 = 0.162, Hosmer and Lemeshow χ2 (2) = 1.876, p = 0.39, c-statistic = 0.723