Table 3: County-level socioeconomic indicators of 6,862 patients diagnosed with stages II and III colorectal cancer, 1990–2010, by age at diagnosis.

⁢Age < 50 years
⁢ ()
⁢Age 50–69 years
⁢ ( = 3,018)
⁢Age ≥ 70 years
⁢ ( = 2,973)
Weighted1%Weighted1%Weighted1%

Per capita income
 <$32,00013315.466523.271824.8
 $32,000–50,00057566.0190962.8181858.1
 >$50,00016318.644414.043717.1
 Median396373838038337
Median household income2
 <$50,00017618.873624.269122.8
 $50,000–75,00055867.6187063.1183861.9
 >$75,00013713.641212.744415.3
 Median577555693157745
% living in poverty
 <1021432.661930.062636.5
 10–1940955.5116554.4103752.9
 ≥209911.938715.629910.7
 Median12.812.711.9
% less than high school
 <1037837.3147143.3161448.7
 10–1937745.9115539.8104236.4
 ≥2011616.839216.931714.8
 Median12.111.410.2
Unemployment rate (%)
 <527330.697632.6109036.5
 5–943745.7155043.1149945.2
 ≥1016123.749224.338418.3
 Median5.85.75.3
Total physicians per 100,000
 <20020926.779330.680128.4
 200–40047352.3156048.4144048.6
 ≥40018921.066521.073223.0
 Median268.2268.3268.4
Total gastroenterologists per 100,0003
 <320130.362532.058132.0
 3–531041.795742.684538.1
 >521128.058925.553629.9
 Median3.93.73.7

.
Note. Cutpoints based on approximate tertiles.
1Proportions weighted by sampling fraction.
2Adjusted to 2010 dollars.
3Poverty and total number of gastroenterologists not collected in 1990/91.