Table 1.

Baseline Characteristics of Men at the Time of 1992 Index Prostate Biopsy

	Positive biopsy		Negative biopsy		Cancer detection (%)
	N	Column %	N	Column %
Total	2,291	100.0	7,119	100.0	24.3
Age at biopsy*
65–69	549	24.0	2,151	30.2	20.3
70–74	748	32.6	2,339	32.9	24.2
75–79	585	25.5	1,573	22.1	27.1
80+	409	17.9	1,056	14.9	27.9
Location†
Los Angeles	1,757	76.7	5,954	83.6	22.8
New Mexico	534	23.3	1,165	16.4	31.4

*P value < .001

†P value < .0001