Table 3.

Results of the multivariable logistic regression analysis predicting unstaged cancer, by cancer site

	Cancer Patients Odds ratio (95% Confidence Interval)
	Breast	Prostate	Colorectal
Demographic Variables
Age:
65-69 (ref)	1.0 (Referent)	1.0 (Referent)	1.0 (Referent)
70-74	1.24 (0.79, 1.95)	1.44 b (1.13, 1.83)	0.96 (0.71, 1.30)
75-79	1.68 a (1.09, 2.59)	1.71 c (1.34, 2.19)	1.04 (0.78, 1.39)
80-84	2.41 c (1.57, 3.71)	3.11 c (2.40, 4.05)	1.05 (0.77, 1.42)
85+	4.39 c (2.91, 6.62)	4.61 c (3.48, 6.10)	2.15 c (1.62, 2.85)
Race:
African-American	1.33 (0.86, 2.05)	1.12 (0.85, 1.48)	0.93 (0.66, 1.30)
All Other (ref)	1.0 (Referent)	1.0 (Referent)	1.0 (Referent)
Sex:
Male	N/A	N/A	0.96 (0.80, 1.14)
Female (ref)			1.0 (Referent)
Socioeconomic Attributes:
Income:
Quartile 1 (lowest)	0.96 (0.71, 1.29)	1.00 (0.81, 1.23)	1.14 (0.92, 1.41)
Quartile 2-3 (IQR**) (ref)	1.0 (Referent)	1.0 (Referent)	1.0 (Referent)
Quartile 4 (highest)	0.84 (0.62, 1.15)	0.97 (0.81, 1.17)	1.09 (0.87, 1.37)
Education attainment:
Low (ref)	1.0 (Referent)	1.0 (Referent)	1.0 (Referent)
High	0.88 (0.58, 1.33)	0.92 (0.69, 1.21)	0.97 (0.73, 1.30)
County of Residence:
Appalachian / Rural	1.15 (0.87, 1.51)	1.12 (0.93, 1.35)	1.31 b (1.08, 1.60)
Metro (ref)	1.0 (Referent)	1.0 (Referent)	1.0 (Referent)
Suburban	0.87 (0.60, 1.25)	1.54 c (1.26, 1.89)	0.94 (0.73, 1.22)
Medicaid Status:
Yes	1.75 c (1.25, 2.44)	1.27 (0.91, 1.77)	1.93 c (1.51, 2.46)
No (ref)	1.0 (Referent)	1.0 (Referent)	1.0 (Referent)
Complexity of Clinical Presentation and Health Care Needs:
Low (ref)	1.0 (Referent)	1.0 (Referent)	1.0 (Referent)
Moderate	3.77 c (2.53, 5.61)	2.13 c (1.46, 3.10)	1.34 (0.92, 1.96)
High	3.54 c (2.37, 5.28)	4.68 c (3.40, 6.45)	3.47 c (2.59, 4.65)

Level of statistical significance:

^a0.01 < p ≤ 0.05;

^b0.001 < p ≤ 0.01;

^cp ≤ 0.001.

All other statistics not significant at p < 0.05

^**IQR: Interquartile Range