Table 3.

LT-VLA and original VLA battery characteristics (Baseline, n=140)

	LT-VLA	VLA
Number of items, Total	15	32
Number of items by domain
Obligatory	4	7
Committed	4	9
Discretionary	7	16
Cronbach’s alpha (total)	0.92	0.95
Mean (± SD) difficulty	1.44 ± 0.61	1.42 ± 0.58
Range, mean difficulty	0.21–3.00	0.14–2.91
Number (%) of scores at floor	0	0
Number (%) of scores at ceiling	1 (0.7)	0
Correlation with long form	0.98	---
Median (IQR) % activities affected	80.0 (71.4, 92.9)	74.8 (67.3, 88.4)
Range, % activities affected	7.1–100	4.5–100
Number (%) of scores at floor	0	0
Number (%) of scores at ceiling	25 (17.9%)	16 (11.4%)
Correlation with long form	0.97	---
Median (IQR) % activities unable	16.7 (7.0, 32.1)	14.3 (7.1, 28.6)
Range, % activities unable	0–93.3	0–93.8
Number (%) of scores at floor	19 (13.6%)	13 (9.3%)
Number (%) of scores at ceiling	0	0
Correlation with Long form	0.96	--

LT-VLA = Lung Transplant Valued Life Activities disability scale;

VLA = Valued Life Activities disability scale; SD = Standard deviation