Table VI.

Confidence intervals (95%) for the variable coefficients estimated by the logistic regression models for prediction of cancer presence vs. absence.

Model	Intercept	BMI	log(PSA)	Age	DRE	Year
Model 1	-6.972, -3.547	-0.002, 0.074	0.909, 1.758	0.017, 0.052	1.061, 1.720	0.062, 0.246
Model 2	-5.475, -2.916	Omitted	0.908, 1.757	0.016, 0.050	1.066, 1.724	0.061, 0.245
Model 3	-5.983, -2.686	-0.002, 0.072	Omitted	0.021, 0.056	1.206, 1.848	0.047, 0.227
Model 4	-3.936, -1.677	-0.007, 0.068	0.990, 1.846	Omitted	1.090, 1.744	0.053, 0.235
Model 5	-7.250, -3.955	0.002, 0.075	1.120, 1.930	0.021, 0.054	Omitted	0.149, 0.325
Model 6	-6.444, -3.104	-0.002, 0.073	0.881, 1.723	0.015, 0.050	1.176, 1.821	Omitted

DRE, digital rectal examination; PSA, prostate specific antigen.