Table 3.
Factors associated with CRC Screening among medicare beneficiaries in 2005.
| Characteristics | Adjusted OR (95% CI) |
|---|---|
| Obesity status | |
| Nonobese | 1.00 (reference) |
| Obesec | 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.