Table 1.

Characteristics of prostate cancer cases and health controls

	Cases	Controls
n	152	142
Age
Mean ± SD	71.68 ± 8.97	70.19 ± 10.86
Range	35–93	32–92
Smoking status
Non-smoker	48	23
Smoker (light and heavy)	86	96*
Unknown	18	23

Two-sided χ ² test and Mann–Whitney where appropriate

* P < 0.01 two-sided χ ² test