Table 3

Relative risk (RR) and 95% confidence interval (CI) of prostate cancer by intake of cruciferous vegetables limited to men who reported that they had a prostate-specific antigen test (1994–2000)

Cruciferous vegetables (1986 intake)P (trend)
≤1/wk1.1–2/wk2.1–3/wk3.1–5/wk>5/wk
Total prostate cancer (n)238317259341263
 RRa1.00.970.910.920.770.03
 95% CI0.81–1.150.76–1.100.78–1.100.64–0.93
Age <65 (n)811209010975
 RRa1.01.041.001.020.790.22
 95% CI0.78–1.400.73–1.360.76–1.390.56–1.10
Age ≥65 (n)157197169232188
 RRa1.00.930.870.890.770.08
 95% CI0.75–1.160.69–1.090.72–1.100.61–0.96
  • a Multivariate model included same variables as in Table 1<$REFLINK> .