Table 1.

Patient characteristics, i.e. age and risk categories as defined by TNM stage, Gleason score and prostate-specific antigen (PSA) at diagnosis of the pre-leaflet, post-leaflet and post-enema groups

Group	Age at presentation (years)	Risk category (n)	PSA level at presentation (ng ml−1)
Pre-leaflet group	Range 55.0–77.0	High risk=3	Range 8.50–31.20
	Median 70.5	Intermediate risk=4	Median=19.40
		Low risk=2
		NA=1
Post-leaflet group	Range 51.0–76.0	High risk=3	Range 6.90–13.00
	Median 62.0	Intermediate risk=1	Median=9.30
		Low risk=4
		NA=2
Post-enema group	Range 54.0–78.0	High risk=2	Range 3.46–18.60
	Median 71.0	Intermediate risk=5	Median=6.40
		Low risk=3

NA, not available.

High risk=T3–T4 or PSA>20 ng ml⁻¹ or Gleason score 8–10; intermediate risk=T2b–T2c or PSA 10–20 ng ml⁻¹ or Gleason score 7; low risk=T1–T2a and PSA<10 ng ml⁻¹ and Gleason score≤6.