Table 4.
Characteristics of Survey Respondents and Non-Respondents
| Variable | Survey respondents (N=1,244) |
Eligible non-respondents (N=2,742) |
Non-respondents, disposition unknown (N=1,703) |
P |
|---|---|---|---|---|
| NP and Practice Characteristics | ||||
| Gender(%) | 0.11 | |||
| Female | 87.2% | 89.5% | 89.0% | |
| Male | 12.8% | 10.3% | 11.0% | |
| Unknown | 0 | 0.2% | 0 | |
| State (%) | <0.001 | |||
| AZ | 10.7% | 11.6% | 15.8% | |
| CA | 23.6% | 27.2% | 19.0% | |
| NJ | 8.8% | 10.5% | 9.9% | |
| PA | 23.1% | 18.5% | 6.3% | |
| TX | 18.6% | 20.5% | 26.7% | |
| WA | 15.3% | 11.8% | 22.3% | |
| Scope of practice (%) | <0.001 | |||
| Full | 26.0% | 23.4% | 38.1% | |
| Reduced | 31.8% | 28.9% | 16.3% | |
| Restricted | 42.2% | 47.7% | 45.7% | |
| Practice setting (%) | <0.01 | |||
| Urban | 86.0% | 87.4% | 89.8% | |
| Rural | 14.0% | 12.6% | 10.2% | |
| Practice organization (%) | 0.86 | |||
| Medical group | 97.6% | 97.8% | 97.6% | |
| Independent physician practice | 2.4% | 2.2% | 2.4% | |
| Number of NPs in the practice (%) | ||||
| 1 | 56.3% | 50.4% | 45.8% | <0.001 |
| 2 | 24.2% | 25.3% | 23.5% | |
| 3–4 | 14.4% | 15.6% | 17.0% | |
| 5+ | 5.1% | 8.8% | 13.7% | |
| Community Characteristics | ||||
| Median household income (%) | ||||
| <$45,000 | 23.0% | 28.8% | 25.7% | <0.001 |
| $45,000-$65,000 | 35.6% | 33.6% | 37.3% | |
| >$65,000 | 40.7% | 37.1% | 36.0% | |
| Unknown | 0.7% | 0.4% | 1.0% | |
| Percent below poverty (mean, SD) | 14.7 (9.2) | 14.1 (8.7) | 15.3 (9.4) | <0.001 |
| Percent with public insurance coverage (mean, SD) | 10.8 (6.8) | 10.9 (6.8) | 12.1 (7.6) | 0.02 |
| Percent uninsured (mean, SD) | 34.8 (11.1) | 33.8 (11.0) | 34.5 (11.9) | <0.001 |
| Unemployment rate (mean, SD) | 6.6 (3.5) | 6.4 (3.2) | 6.6 (3.7) | 0.11 |
Note: P-values are for the 3-way comparison across groups using Chi-square tests (categorical variables) or one-way ANOVA tests (continuous variables).