Table 4.
Unadjusted Associations Between Potential Confounding or Effect-modifying Variables and Body Mass Index (BMI) Levels, Maryland Cancer Survey 2002
| Variable | BMI Level | P Valuea | ||
|
| ||||
| <25 kg/m2 | 25-29.9 kg/m2 | ≥30 kg/m2 | ||
|
| ||||
| Weighted % | Weighted % | Weighted % | ||
| Total population | 38.7 | 36.0 | 25.4 | NA |
| Area of residence | ||||
| Urban | 39.4 | 35.6 | 25.0 | .23 |
| Rural | 36.0 | 37.2 | 26.8 | |
| Sex | ||||
| Male | 32.1 | 42.2 | 25.7 | <.001 |
| Female | 44.3 | 30.6 | 25.1 | |
| Race | ||||
| White | 42.2 | 35.8 | 22.0 | <.001 |
| Black | 23.9 | 36.3 | 39.8 | |
| Other | 49.6 | 36.7 | 13.7 | |
| Age, y | ||||
| 50-64 | 35.1 | 36.5 | 28.5 | <.001 |
| 65-74 | 39.3 | 36.4 | 24.2 | |
| ≥75 | 49.2 | 33.7 | 17.0 | |
| Marital status | ||||
| Married or partner in unmarried couple | 37.8 | 37.9 | 24.3 | .01 |
| Divorced or separated | 35.4 | 35.4 | 29.2 | |
| Widowed | 43.1 | 30.9 | 26.1 | |
| Never married | 43.9 | 27.2 | 29.0 | |
| Education | ||||
| High school graduate or less | 35.9 | 34.2 | 29.9 | <.001 |
| Some college or more | 40.7 | 37.4 | 21.9 | |
| Employment | ||||
| Employed for wages | 37.2 | 36.2 | 26.6 | .43 |
| Self-employed | 34.7 | 41.6 | 23.8 | |
| Retired | 40.4 | 35.6 | 24.0 | |
| Not employed | 38.5 | 33.4 | 28.1 | |
| Health insurance | ||||
| Yes | 39.0 | 35.9 | 25.1 | .15 |
| No | 30.0 | 38.8 | 31.2 | |
| Health status | ||||
| Excellent, very good, or good | 39.8 | 37.0 | 23.2 | <.001 |
| Fair or poor | 33.6 | 31.9 | 34.5 | |
| Physical examination in last 2 years | ||||
| Yes | 38.5 | 35.7 | 25.9 | .19 |
| No | 42.6 | 38.1 | 19.4 | |
| Recommendation from provider for colorectal cancer screening | ||||
| Yes | 38.0 | 36.1 | 26.0 | .40 |
| No | 40.6 | 35.7 | 23.7 | |
NA indicates not applicable.
a
Chi-square test to compare proportions; a priori level of significance is P <.05.