Table 3.
Odds of FOBT Overuse, by Reason and Characteristics of Patients and Facilities (Significant Odds Ratios in Bold)
| Characteristic | Too soon after FOBT | Too soon after other procedure | ||
|---|---|---|---|---|
| Unadjusted odds ratio 95 % confidence interval) | Adjusted odds ratio (95 % confidence interval)* | Unadjusted odds ratio (95 % confidence interval) | Adjusted odds ratio (95 % confidence interval)* | |
| Age 65 and older | 1.06 (0.78, 1.43) | 1.02 (0.75, 1.40) | 1.03 (0.75, 1.41) | 1.09 (0.81, 1.48) |
| Race White | 1.06 (0.73, 1.54) | 1.09 (0.72, 1.65) | 1.06 (0.71, 1.57) | 1.31 (0.88, 1.95) |
| Gender Male | 1.11 (0.52, 2.40) | 1.16 (0.58, 2.31) | 0.55 (0.28, 1.10) | 0.57 (0.26, 1.25) |
| Education | ||||
| ≤High school | 1.08 (0.78, 1.51) | 0.89 (0.63, 1.26) | 1.26 (0.93, 1.71) | 1.24 (0.92, 1.68) |
| >High school | – | – | – | – |
| Annual household income | ||||
| $0–$20,000 | 1.15 (0.72, 1.83) | 1.13 (0.71, 1.81) | 1.36 (0.77, 2.39) | 1.12 (0.56, 2.23) |
| $20,000–$40,000 | 1.27 (0.75, 2.15) | 1.24 (0.78, 1.98) | 1.34 (0.81, 2.23) | 1.18 (0.65, 2.13) |
| >$40,000 | – | – | – | – |
| Utilization | 1.14 (1.10, 1.19) | 1.16 (1.11, 1.21) | 1.15 (1.11, 1.19) | 1.16 (1.10, 1.21) |
| Region | ||||
| Midwest | 0.39 (0.17, 0.94) | 0.29 (0.11, 0.77) | 0.52 (0.31, 0.88) | 0.41 (0.21, 0.77) |
| Northeast | 1.25 (0.67, 2.33) | 0.96 (0.49, 1.84) | 0.77 (0.49, 1.20) | 0.70 (0.42, 1.16) |
| Northwest | 0.59 (0.28, 1.25) | 0.45 (0.20, 1.02) | 0.41 (0.24, 0.72) | 0.42 (0.23, 0.78) |
| Southern States | 1.06 (0.56, 2.00) | 0.87 (0.45, 1.70) | 0.76 (0.50, 1.14) | 0.74 (0.46, 1.19) |
| Southwest | – | – | – | – |
*Adjusting for facility complexity, whether patient receives health care outside of the VHA, and all characteristics in column 1