The univariate odds ratio that a myocardial perfusion imaging (MPI) study will be true positive is listed for clinically relevant variables. Covariates found to be significant at α < 0.2 were selected for multivariate analysis; multivariate odds ratios are listed at right (with 95% confidence interval and p value).

Table 3: The univariate odds ratio that a myocardial perfusion imaging (MPI) study will be true positive is listed for clinically relevant variables. Covariates found to be significant at α < 0.2 were selected for multivariate analysis; multivariate odds ratios are listed at right (with 95% confidence interval and p value).

Odds ratio of MPI study being true positive (with 95% confidence interval)
Variables	Univariate analysis	Logistic regression
SPECT/CT camera	5.60 (1.83 - 17.1) p = 0.002	7.35 (2.00 - 31.0) p = 0.003
SDS^*	1.19 (1.03 - 1.38) p = 0.017	1.08 (1.01 - 1.16) p = 0.04
Hyperlipidemia	16.9 (1.97 - 145) p = 0.011	7.35 (0.79 - 68.8) p = 0.08
Diabetes	1.61 (0.50 - 5.14) p = 0.31
Hypertension	1.71 (0.26 - 11.2) p = 0.58
BMI^*	1.01 (0.91 - 1.11) p = 0.92
Age^*	1.01 (0.96 - 1.06) p = 0.70
Male sex	0.51 (0.15 - 1.67) p = 0.26
Prior PCI or CABG	1.35 (0.48 - 3.84) p = 0.57
LVEF < 50%	1.50 (0.47 - 4.77) p = 0.49
Pharmacologic stress	1.37 (0.38 - 4.88) p = 0.62

SDS: sum difference score; BMI: body mass index; PCI: percutaneous intervention; CABG: coronary artery bypass graft; LVEF: left ventricular ejection fraction.