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

Table 3 Converting changes in each attribute into changes in NM (“exchange rates”)

Change in attribute	Change in composite allocation score	Equivalent change in NM
Adult donor model
Medical priority: reduce LAS by 25 points	− 1.000	142.857
Candidate age: reduce candidate age from at least 12 years old to below 12 years old	− 1.601	228.714
Candidate blood type: change candidate blood type from identical to donor to compatible with donor	− 2.016	288.000
Pediatric donor model
Medical priority: reduce LAS by 25 points	− 0.950	135.714
Candidate age: reduce candidate age from at least 18 years old to below 12 years old	1.946	− 278.000
Candidate blood type: change candidate blood type from identical to donor to compatible with donor	− 1.956	279.429

Calculations performed using coefficients reported in Table 1, which were rounded to the third decimal place

ISSN: 1472-6947