A revealed preference analysis to develop composite scores approximating lung allocation policy in the U.S

Table 5 Predictive performance metrics

	Mean	Minimum	25th percentile	50th percentile	75th percentile	Maximum
Adult donor model (N = 2359)
Spearman correlation	0.933	0.318	0.916	0.941	0.958	1.000
Kendall’s tau	0.803	0.273	0.765	0.808	0.843	1.000
Pediatric donor model (N = 453)
Spearman correlation	0.911	0.451	0.897	0.930	0.949	1.000
Kendall’s Tau	0.792	0.551	0.754	0.797	0.833	1.000

We chose only to calculate new rankings for 2359 out of the total 6466 adult donor match runs due to the computationally expensive nature of calculating predictive performance metrics on very large datasets. We only calculated new rankings for 453 of the total 534 pediatric donor match runs because the 81 remaining match runs each included fewer than 10 candidates

ISSN: 1472-6947