Table 4.

Standardized incidence (SIR) and mortality (SMR) ratios.

	Gleason 5–7 (for the period through 2002)	Gleason 8–10 (for the period through 2002)	All cases (for the period through 2002)	All cases (all years)
	Ratio (95% CI)	Ratio (95% CI)	Ratio (95% CI)	Ratio (95% CI)
SIR
Control arm	1.35 (1.28–1.41)	0.72 (0.63–0.81)	1.21 (1.15–1.26)	1.11 (1.07–1.15)
Intervention arm	1.74 (1.66–1.81)	0.64 (0.55–0.73)	1.52 (1.46–1.58)	1.23 (1.19–1.27)
All	1.54 (1.49–1.59)	0.68 (0.62–0.74)	1.36 (1.32–1.40)	1.17 (1.14–1.20)
SMR
Control arm				0.55 (0.46–0.64)
Intervention arm				0.60 (0.50–0.69)
All				0.57 (0.51–0.64)

Note: Expected incidence and mortality derived from SEER statistics. SIR (SMR) is observed over expected prostate cancer incidence (mortality).