Table 1. Comparison of respondents and Non-respondents, by specialty (n = 1,383).
| Pediatrics | Family Medicine | General Internal Medicine | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Respondents (n = 319) | Non-respondents (n = 147) | p-value | Respondents (n = 266) | Non-respondents (n = 195) | p-value | Respondents (n = 235) | Non-respondents (n = 221) | p-value | |||
| Gender, % | 0.73 | 0.14 | 0.33 | ||||||||
| Female | 35 | 37 | 43 | 36 | 45 | 40 | |||||
| Male | 65 | 63 | 57 | 64 | 55 | 60 | |||||
| Setting, % | 0.65 | 0.14 | 0.03 | ||||||||
| Private practice | 79 | 80 | 69 | 77 | 65 | 75 | |||||
| Hospital or clinic | 18 | 15 | 23 | 18 | 27 | 17 | |||||
| HMO | 3 | 5 | 8 | 5 | 8 | 8 | |||||
| Location, % | 0.99** | ||||||||||
| Urban | 52 | 56 | 0.43** | 34 | 38 | 0.54 | 55 | 55 | |||
| Suburban | 46 | 44 | 58 | 55 | 43 | 44 | |||||
| Rural | 1 | 0 | 8 | 7 | 1 | 1 | |||||
| Region, % | 0.36 | 0.62 | |||||||||
| Midwest | 23 | 18 | 31 | 27 | 0.02 | 24 | 19 | ||||
| Northeast | 22 | 18 | 18 | 13 | 23 | 23 | |||||
| South | 35 | 41 | 27 | 41 | 31 | 35 | |||||
| West | 29 | 23 | 24 | 19 | 21 | 23 | |||||
| Age, years, mean (sd)/ median | 50.2 (10.5) / 50.0 | 52.2 (10.9) / 51.0 | 0.06 | 55.2 (8.2) / 55.0 | 56.0 (7.5) / 57.0 | 0.30 | 55.1 (9.1) / 57.0 | 56.1 (8.8) / 57.0 | 0.25 | ||
| Number of providers in practice, mean (sd) / median | 11.7 (27.8) / 6.0 | 11.4 (41.7) / 5.0 | 0.15* | 11.5 (34.6) / 6.0 | 8.3 (11.5) / 4.0 | 0.03* | 19.4 (44.3) / 7.0 | 53.4 (491) / 5.0 | 0.01* | ||
*Wilcoxon test
**Fisher’s Exact test