. Author manuscript; available in PMC: 2011 Jun 27.

Published in final edited form as: J Natl Cancer Inst. 2006 May 3;98(9):10.1093/jnci/djj159. doi: 10.1093/jnci/djj159

Table 2.

Three-year cancer mortality rate and risk among stage III colon cancer patients diagnosed 1992 – 1995 (n = 4711), by level of chemotherapy completion and definition of completion

	Liberal definition			Conservative definition
Chemotherapy	No. (%)	Unadjusted cancer mortality rate, % ^*	Adjusted RR (95% CI) ^†	No. (%)	Unadjusted cancer mortality rate, % ^*	Adjusted RR (95% CI)^†
None	2162 (45.9)	31.0	1.00	2162 (45.9)	31.0	1.00
Some but incomplete	569 (12.1)	30.4	0.94 (0.81 to 1.11)	741 (15.7)	29.7	0.93 (0.80 to 1.07)
Complete	1980 (42.0)	24.2	0.79 (0.69 to 0.89)	1808 (38.4)	23.9	0.78 (0.68 to 0.88)

Statistically significant at P≤.001 (two-sided chi-square test).

^†

RR = relative risk; CI = confidence interval. Adjusted for race, age, sex, marital status, comorbidity score, urban or rural residence location, tumor extent, number of positive lymph nodes, tumor grade, cancer recurrence, registry, and age- and race-specific annual median census tract income.