Table 2. Comparison of respondents and non-respondents.
| Characteristic | Did not respond to all surveys (n = 2111, 55%) Column % |
Responded to all surveys (n = 1740, 45%) Column % |
p-value | Responded to none (n = 497, 13%) Column % |
Responded at least to one survey (n = 3354, 87%) Column % |
p-value |
|---|---|---|---|---|---|---|
| Specialty | ||||||
| FM | 36.7 | 28.7 | < .0001 | 31.8 | 33.3 | 0.80 |
| GIM | 18.4 | 28.0 | 23.3 | 22.6 | ||
| Peds | 45.0 | 43.3 | 44.9 | 44.1 | ||
| Male, % | 52.1 | 51.2 | 0.57 | 59.6 | 50.5 | 0.0002 |
| Provider Age | ||||||
| Less than 40 | 19.3 | 17.3 | 0.01 | 14.3 | 19.0 | 0.002 |
| 40–49 | 32.0 | 28.7 | 35.9 | 29.7 | ||
| 50–59 | 31.8 | 36.1 | 30.1 | 34.2 | ||
| Over 60 | 17.0 | 17.9 | 19.8 | 17.1 | ||
| Practice setting, % | ||||||
| Private practice | 76.9 | 77.5 | 0.12 | 79.3 | 76.9 | 0.49 |
| Community/hospital based | 19.2 | 17.5 | 16.9 | 18.7 | ||
| HMO or MCO | 3.8 | 5.0 | 3.8 | 4.4 | ||
| Practice location, % | ||||||
| Urban, Inner city | 30.6 | 39.5 | < .0001 | 33.8 | 34.7 | 0.04 |
| Urban, non-inner/Suburban | 52.7 | 43.3 | 52.7 | 47.8 | ||
| Rural | 16.8 | 17.2 | 13.5 | 17.5 | ||
| Region of the Country, % | ||||||
| Midwest | 23.6 | 23.5 | 0.10 | 24.6 | 23.4 | 0.005 |
| Northeast | 20.6 | 22.4 | 23.5 | 21.1 | ||
| South | 35.4 | 32.0 | 36.8 | 33.5 | ||
| West | 20.4 | 22.2 | 15.1 | 22.1 | ||
| Providers in practice | ||||||
| 1–5 | 53.3 | 48.4 | 0.003 | 55.5 | 50.5 | 0.06 |
| 6 or more | 46.7 | 51.6 | 44.5 | 49.5 |
Abbreviations: Peds = pediatricians, FM = family medicine physicians, GIM = general internal medicine physicians, HMO = health maintenance organization, MCO = managed care organization