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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