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. Author manuscript; available in PMC: 2008 Jul 8.
Published in final edited form as: Int J Technol Assess Health Care. 2004;20(3):296–299. doi: 10.1017/s0266462304001114

Table 2.

Results of Logistic Regression Analysis (n = 37)

Variable B SE df Wald Significance Exp(B) Exp(B)
(95% CI)
Constant 135.35 108.24 1 1.56 0.21 0.00 —
Country −0.73 0.92 1 0.63 0.43 0.48 0.08–2.94
Year −0.07 0.05 1 1.57 0.21 0.94 0.84–1.04

B, beta for the regression coefficients of the logistic regression; SE, standard error of the regression coefficients; df, degrees of freedom; Wald statistic calculated as the ratio of B to the SE and then squaring the result; Exp(B), odds ratio; 95% CI for Exp(B), 95% confidence interval for the odds ratio.