TABLE 2.

Demographic composition of all patients evaluated divided in to 2 groups

Characteristic	Group 1	Group 2	P value
Age, mean ± SD	48 ± 13 y	50 ± 14 y
Sex	51% male, 49% female	59% male, 41% female
Emphysema	52%	25.8%
Cystic fibrosis	18.2%	17.7%
Pulmonary fibrosis	16.1%	46%
Pulmonary vascular disease	7.2%	1.6%
Double or single transplant	77.7% double, 22.3% single	96.2% double, 3.8% single
Primary graft dysfunction	22.1%	31.6%	<.001
Hospital mortality	4.4%	3.5%	<.4
1-y survival	84.3%	89.3%	<.02

Group 1 (before introduction of lung allocation score); Group 2 (after introduction of lung allocation score). Primary graft dysfunction (PGD) is defined as PGD grade 3 identified from the time of transplant to 72 hours post-transplant. SD, Standard deviation.