Table 4.
Factors Associated with Later Stage Diagnosis of CRC, SEER-Medicare
| Individual Characteristics1 |
Individual and Area Characteristics |
|
|---|---|---|
| Odds Ratio (95% Confidence Interval) | ||
| Individual characteristics | ||
| Race/ethnicity | ||
| White | Reference | Reference |
| African-American | 1.38 (1.30–1.46) | 1.39 (1.28–1.50) |
| Hispanic | 1.06 (1.0–1.13) | 1.02 (0.94–1.10) |
| Ever eligible for state buy-in insurance | ||
| Yes | 1.02 (0.97–1.06) | 1.00 (0.96–1.05) |
| No | Reference | Reference |
| Chronic conditions | ||
| None | Reference | Reference |
| One | 0.87 (0.83–0.90) | 0.87 (0.83–0.91) |
| Two | 0.86 (0.81–0.92) | 0.86 (0.81–0.92) |
| Three or more | 0.73 (0.68–0.78) | 0.73 (0.68–0.78) |
| Cancer type | ||
| Colon | 1.39 (1.34–1.44) | 1.39 (1.34–1.44) |
| Rectal | Reference | Reference |
| Number of primary care physicians per 100k population 50 and older (increments of 100) | 1.02 (1.00–1.04) | |
| Number of sigmoidoscopies /colonoscopies per 100k population 50 and older (increments of 750) | 0.98 (0.97–1.0) | |
| Percentage African-American (increments of 5%) | 1.0 (0.99–1.00) | |
| Percentage Hispanic (increments of 5%) | 1.0 (1.00–1.01) | |
| Median household income (increments of $20,000) | 0.98 (0.97–0.99) | |
Ordinal logistic regression model (stage 1 is the reference). Model also adjusted for age, sex, marital status, HMO or no Medicare in 13 months prior to diagnosis.