Table 2:

Associations of Characteristics with Long-Term Survival among Women Less than 80 Years of Age with Treatable Colon Cancers: Logistic Regression Models

	Model 1		Model 2		Model 3		Model 4
Characteristic	OR	95% CI	OR	95% CI	OR	95% CI	OR	95% CI
	10-Year Survival among 687 Women with Nonmetastasized Disease
Country (Canadian advantage)	1.48	1.02, 2.16	1.31	0.89, 1.94	1.27	0.85, 1.89	1.18	0.77, 1.83
Medicare or private insurance			1.72	1.09, 2.69	1.88	1.18, 2.98	1.81	1.12, 2.90
Stage I disease at diagnosis					2.91	1.96, 4.33	2.94	1.95, 4.41
16 or more lymph nodes harvested							1.59	1.02, 2.48
	Eight-Year Survival among 506 Women with Stage II or III Disease at Diagnosis
Country (Canadian advantage)	1.38	1.00, 1.90	1.24	0.78, 1.96	1.34	0.84, 2.15	1.35	0.86, 2.15
Any insurance			1.75	1.01, 3.03	2.16	1.06, 4.41	2.23	1.10, 4.55
Stage II disease at diagnosis					2.02	1.39, 2.95	2.24	1.50, 3.36
Received chemotherapy							1.39	1.01, 2.19

Notes: All effects were adjusted for age, tumor grade and place (large or small, urban or rural). Bolded odds ratios (ORs) are statistically significant. The findings of overall (all-cause) and cancer-specific survival analyses were nearly identical. Overall survival analyses are presented in the table. CI = confidence interval. Surgical and chemotherapy treatment rates were significantly lower among participants 80 years of age or older in both countries.