Table 1

Characteristics of patients and controls

Colorectal cancer (n=52) Control
(n=127)
Age range29–8416–81
Mean (SD) age57 (13)45 (18)
Sex
 Male3170
 Female2157
Mean (SD) spontaneous breaks/cell 0.020 (0.025)0.023 (0.024)
Mean (SD) bleomycin induced breaks/cell 0.84 (0.32)0.69 (0.25)
Site
 Right colon1-150 3
 Left colon1-151 8
 Rectum41
Family cancer history
 +11
 −41
p53 overexpression
 +25
 −22
  • 1-150 Including ascending and transverse colon.

  • 1-151 Including descending and sigmoid colon.