Table 7

Multivariate Predictors of QCA Disease Burden (n = 654)

ParametersSelection = BackwardSelection = Stepwise
β Coeff. (95% CI)p Valueβ Coeff. (95% CI)p Value
Multivariate Predictors of QCA Percent Area Stenosis
Non-white race45.2 (3.7 to 86.7)0.0344.43 (2.9 to 85.9)0.04
Angina−42.4 (−86.2 to 1.4)0.06−42.6 (−86.4 to 1.1)0.06
Prior revascularization43.0 (13.7 to 72.3)0.00442.7 (13.4 to 71.9)0.005
Stroke65.8 (−21.0 to 152.3)0.14

Abbreviations as in Table 4.

  • Variables selected by the backward approach are based on a significance level α <0.10;

  • variables selected by the stepwise approach are based on a significance level α <0.15.