Table 2. Selected β Regression Results for Donation Rate Metricsa.
| Characteristic | Donors per death | Donors per eligible death | Eligible donors per eligible death | |||
|---|---|---|---|---|---|---|
| Coefficient (SE) | P value | Coefficient (SE) | P value | Coefficient (SE) | P value | |
| Age group, y | ||||||
| 18-34 | Baseline | NA | NA | NA | NA | NA |
| 35-49 | −0.02 (0.01) | .09 | 0.12 (0.02) | <.001 | 0.05 (0.02) | .004 |
| 50-64 | −0.15 (0.01) | <.001 | 0.06 (0.02) | <.001 | −0.004 (0.02) | .78 |
| 65-84 | −0.41 (0.01) | <.001 | −0.45 (0.02) | <.001 | −0.65 (0.02) | <.001 |
| Sex | ||||||
| Female | Baseline | NA | NA | NA | NA | NA |
| Male | 0.04 (0.01) | <.001 | 0.10 (0.01) | <.001 | 0.07 (0.01) | <.001 |
| Race/ethnicity | ||||||
| White | Baseline | NA | NA | NA | NA | NA |
| Black | −0.39 (0.01) | <.001 | −0.90 (0.02) | <.001 | −0.78 (0.02) | <.001 |
| Hispanic | −0.48 (0.01) | <.001 | −0.90 (0.02) | <.001 | −0.78 (0.02) | <.001 |
| Other | −0.67 (0.01) | <.001 | −1.36 (0.02) | <.001 | −1.23 (0.03) | <.001 |
| BMI | ||||||
| <30 | Baseline | NA | NA | NA | NA | NA |
| ≥30 | −0.13 (0.01) | <.001 | −0.34 (0.01) | <.001 | −0.38 (0.01) | <.001 |
| Cause of death | ||||||
| Anoxia | Baseline | NA | NA | NA | NA | NA |
| Cerebrovascular causes/stroke | −0.03 (0.01) | .01 | 0.09 (0.02) | <.001 | 0.16 (0.02) | <.001 |
| Central nervous system tumor | −0.64 (0.02) | <.001 | −1.17 (0.06) | <.001 | −1.00 (0.06) | <.001 |
| Head trauma | −0.08 (0.01) | <.001 | −0.04 (0.02) | .02 | 0.03 (0.02) | .06 |
| Other | −0.50 (0.01) | <.001 | −1.00 (0.03) | <.001 | −0.99 (0.03) | <.001 |
| Year | ||||||
| 2008-2009 | Baseline | NA | NA | NA | NA | NA |
| 2010-2011 | 0.01 (0.01) | .26 | 0.07 (0.02) | <.001 | 0.05 (0.02) | .02 |
| 2012-2013 | 0.03 (0.01) | .03 | 0.09 (0.02) | <.001 | 0.05 (0.02) | .02 |
| 2014-2015 | 0.05 (0.01) | <.001 | 0.12 (0.02) | <.001 | 0.06 (0.02) | .003 |
| 2016-2017 | 0.08 (0.01) | <.001 | 0.15 (0.02) | <.001 | 0.11 (0.02) | <.001 |
| Intercept | −4.16 (0.03) | <.001 | −1.68 (0.05) | <.001 | −1.28 (0.05) | <.001 |
Abbreviations: BMI, body mass index (calculated as weight in kilograms divided by height in meters squared); NA, not applicable.
a
Coefficients are not shown for individual organ procurement organization, although organ procurement organization was included as a covariate. The analysis used a parameter significance level of α set to 0.05.