Table 2.

Probability of a) prostate cancer and (b) Gleason ≥7 disease in various ranges of Beckman Coulter phi (WHO calibrations)

a)
phi Range (WHO calibration)	Probability of Cancer (95% Confidence Interval)	Relative Risk (95% Confidence Interval)	Percent of patients in phi range
0-28.9	11.3% (6.8% - 16.0%)	1.0	26.8%
29.0-39.9	18.0% (13.4% - 22.8%)	1.6 (1.0 - 2.9)	31.4%
40.0-61.9	34.0% (28.2% - 39.5%)	3.0 (1.9 - 5.3)	28.3%
62+	49.6% (40.0% - 59.5%)	4.4 (2.8 - 8.1)	13.5%

b)
	Gleason Score on Biopsy among Cancer Patients (N=429)
phi Range (WHO calibration)	Less than 7 n (%)	≥7 n (%)	Risk Ratio (95% CI)
0-28.9	40 (78.4)	11 (21.6)	1.0
29.0-39.9	68 (69.4)	30 (30.6)	1.4 (0.8, 2.6)
40.0-61.9	117 (70.9)	48 (29.1)	1.3 (0.8, 2.4)
62.0+	65 (56.5)	50 (43.5)	2.0 (1.1, 3.5)

Note: One participant excluded with missing Gleason score.

Cochran-Armitage test for trend, p=0.003