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Table 3 Logistic regression analysis of whether respondents had ever used referral guidelines

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)
1.225 .673 3.315 1 .069 3.405 .910 12.730
Age Category .658 .285 5.320 1 .021 1.930 1.104 3.374
Constant -4.397 1.012 18.871 1 .000 .012   
  1. a Variable(s) entered on step 1: gender, age, GP practice size, Personal list size. Likelihood ratio test χ2 (2) = 12.689, p = 0.002, Cox and Snell R2 = 0.10, Nagelkerke R2 = 0.165, Hosmer and Lemeshow χ2 (6) = 5.8, p = 0.45, c-statistic = 0.749