Obesity Status and Colorectal Cancer Screening in the United States

Table 3

Factors associated with CRC Screening among medicare beneficiaries in 2005.

Characteristics	Adjusted OR; (95% CI)
Obesity status
Nonobese	1.00 (reference)
Obese^c	1.25 (1.12–1.39)^a
Gender
Male	1.00 (reference)
Female	1.24 (1.15–1.34)^b
Age
75+	1.00 (reference)
65–74	0.94 (0.86–1.03)
Under 65	0.54 (0.47–0.62)^b
Race/ethnicity
Non-Hispanic white	1.00 (reference)
Non-Hispanic black	0.97 (0.83–1.14)
Hispanic	0.97 (0.80–1.17)
Other	0.74 (0.62–0.88)^a
Education
College degree or higher	1.00 (reference)
Some college	0.89 (0.75–1.07)
High school/vocational grad	0.67 (0.58–0.78)^b
No high school diploma	0.52 (0.44–0.61)
Marital status
Divorced	1.00 (reference)
Married	0.90 (0.74–1.09)
Widowed	0.76 (0.65–0.90)^a
Never married	0.55 (0.45–0.69)^b
Other	0.16 (0.04–0.64)^a
Supplemental insurance
Private	1.00 (reference)
Medicaid	0.53 (0.45–0.61)^a
Medicaid + private	0.69 (0.50–0.95)^a
None	0.79 (0.71–0.88)^a
Income
Less than $25 K	1.00 (reference)
$25 K to $50 K	1.22 (1.09–1.36)^a
Greater than $50 K	1.31 (1.05–1.62)^a
Usual source of care
No	1.00 (reference)
Yes	5.64 (4.69–6.80)^b
History of any type of cancer
No	1.00 (reference)
Yes	1.19 (1.08–1.32)^a
History of any type of cancer screening
No	1.00 (reference)
Yes	2.29 (2.11–2.48)^b

aSignificance level 𝑃<0.05.
^bSignificance level 𝑃<0.0001.
^cThe category includes both obese and morbidly obese beneficiaries.