Table 1

Percentage distribution of selected characteristics among colon cancer cases and matched controls at study baseline, Washington County, Maryland, 1974

Cases (n = 117)Controls (n = 117)
Sex
Male41.941.9
Female58.158.1
Age (yr)
≤448.58.5
45–5430.830.8
55–6435.035.0
65+25.625.6
Cigarette smoking
Never44.453.0
Past35.933.3
Current19.713.7
Period diagnosed with cancer
1975–197821.4NAa
1979–198218.8
1983–198633.3
1987–199126.5
Age diagnosed with cancer
35–443.4NA
45–549.4
55–6428.2
65–7426.5
75+32.5
Cancer site
Cecum and ascending36.8NA
Transverse colon11.1
Descending colon10.3
Sigmoid colon36.8
Other, multiple sites5.1
  • a NA, applies only to the case group.