Characteristics of the Study Population: MCBS 2000–2005
| Survey Yeara | ||||
|---|---|---|---|---|
| Characteristics | 2000 (n=8,330) | 2003 (n=7,889) | 2005 (n=7,614) | PValue |
| FOBT = home fecal occult blood test; MCBS = Medicare Current Beneficiary Survey. | ||||
| a The weighted population estimates for those included in the analyses were for year 2000, N = 22,329,320; year 2003, N = 22,601,377; year 2005, N = 22,548,092. Column percents may not sum to 100% because of rounding error. | ||||
| b Colorectal cancer testing categories are mutually exclusive. | ||||
| Age groups, % | ||||
| 65–69 y | 33.5 | 35.0 | 35.5 | .01 |
| 70–74 y | 36.5 | 35.1 | 34.4 | .01 |
| 75–80 y | 30.1 | 30.0 | 30.1 | >.99 |
| Race-ethnicity, % | ||||
| White | 81.0 | 79.7 | 79.2 | .15 |
| Blacks | 8.2 | 8.2 | 8.2 | >.99 |
| Hispanic | 7.0 | 7.7 | 7.7 | .44 |
| others | 3.8 | 4.4 | 4.9 | .02 |
| Sex, women, % | 55.8 | 54.9 | 54.8 | .17 |
| Marital status, % | ||||
| Married | 61.3 | 61.7 | 62.4 | .21 |
| Widowed | 25.4 | 24.9 | 23.2 | .01 |
| Divorced/separated | 9.7 | 10.4 | 11.3 | .001 |
| Never married | 3.6 | 3.0 | 3.1 | .10 |
| Body mass index, kg/m2, % | ||||
| <25 | 39.4 | 37.6 | 37.1 | .02 |
| 25–30 | 38.9 | 38.3 | 38.5 | .43 |
| >30 | 21.7 | 24.1 | 23.5 | <.001 |
| Language of interview, English, % | 96.5 | 95.9 | 95.9 | .18 |
| Less than high school, % | 30.1 | 27.4 | 24.5 | <.01 |
| Annual household income <$25,000, % | 57.7 | 52.1 | 48.9 | <.01 |
| Residing in a metropolitan area, % | 76.3 | 76.8 | 76.4 | .90 |
| Medicare insurance type, % | ||||
| Medicare part B only | 9.3 | 12.4 | 12.3 | <.01 |
| Medicare-Medicaid | 9.6 | 11.4 | 11.3 | .02 |
| Medicare with supplemental insurance | 81.1 | 76.2 | 76.4 | <.01 |
| Usual place of medical care and physician, % | ||||
| Primary care | 78.1 | 82.4 | 82.0 | <.01 |
| Non–primary care | 14.7 | 12.0 | 12.5 | .01 |
| No usual place of care | 7.1 | 5.7 | 5.5 | .001 |
| Delayed medical care due to cost | 7.3 | 8.2 | 7.6 | .42 |
| History of non–skin cancer except CRC | 15.1 | 15.8 | 15.8 | .22 |
| General health fair-to-poor | 21.7 | 21.5 | 19.9 | .04 |
| Colorectal cancer testing, %b | ||||
| Unscreened | 39.2 | 35.0 | 31.7 | <.01 |
| Endoscopy >5 y previously | 8.0 | 8.8 | 9.0 | <.01 |
| FOBT within 2 y | 14.9 | 11.7 | 10.4 | .04 |
| Recent endoscopy | 37.8 | 44.5 | 48.9 | <.01 |