Comparison of Characteristics of Responders and Nonresponders (n = 926)
| Characteristic | Category | Nonresponder Col % (n) N = 284 | Responder Col % (n) N = 642 | P value |
|---|---|---|---|---|
| Gender | Female | 41.0% (116) | 45.7% (293) | 0.18 |
| Male | 59.0% (167) | 54.3% (348) | ||
| Practice setting | Hospital or clinic | 16.5% (47) | 20.2% (130) | 0.37 |
| HMO | 4.9% (14) | 5.5% (35) | ||
| Private practice | 78.5% (223) | 74.3% (477) | ||
| Census location | Rural | 10.3% (29) | 9.7% (62) | 0.05 |
| Urban-non-inner | 59.4% (167) | 67.3% (429) | ||
| Urban-inner | 30.2% (85) | 22.9% (146) | ||
| Region of country | Midwest | 26.1% (74) | 25.5% (164) | 0.98 |
| Northeast | 21.1% (60) | 20.4% (131) | ||
| South | 31.7% (90) | 31.9% (205) | ||
| West | 21.1% (60) | 22.1% (142) | ||
| Decision-making | Independent | 58.0% (163) | 57.4% (366) | 0.86 |
| Larger system level | 42.0% (118) | 42.6% (272) | ||
| Mean (SD)/median age in years | 56.5 (9.0) / 58 | 53.9 (9.5) / 54 | <0.0001 | |
| Mean (SD)/median number of providers | 9.5 (20.5) / 5 | 14.6 (83.6) / 6 | 0.03* |
↵* Wilcoxon test.
HMO, health maintenance organization; SD, standard deviation.