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. Author manuscript; available in PMC: 2018 Aug 10.
Published in final edited form as: Am J Transplant. 2017 Jan 3;17(5):1334–1345. doi: 10.1111/ajt.14081

Table 2.

The effect of lung transplantation on HRQL and Valued Life Activities (LT-VLA) disability as a mediator of this effect

SF12-PCS
(MCID = 5)
SF12-MCS
(MCID = 5)
AQ20-R
(MCID = 1.75)
EQ5D
(MCID = 0.06)
EQVAS
(MCID =10)
Early Delayed Early Delayed Early Delayed Early Delayed Early Delayed
Model 1 15.0
(13.4, 16.7)
−0.2
(−0.4, 0.05)
4.9
(3.5, 6.4)
−0.4
(−0.6, −0.2)
7.9
(7.4, 8.4)
−0.03
(−0.10, 0.04)
0.17
(0.14, 0.20)
−0.004
(−0.007, −0.0003)
30.4
(27.5, 33.3)
−0.4
(−0.8, −0.1)
Model 2 4.9
(3.2, 6.6)
−0.1
(−0.4, 0.05)
−1.0
(−2.5, 0.6)
−0.4
(−0.5, −0.2)
5.4
(4.8, 6.0)
−0.01
(−0.08, 0.05)
0.007
(−0.018, 0.032)
−0.003
(−0.006, −0.0004)
18.3
(15.2, 21.3)
−0.4
(−0.7, −0.1)

Early: From before to 3 months after transplant Delayed: 3 months after transplant to censoring which is completion of 3-year follow-up, death, dropout, or the end of the study period, whichever came first. Effect estimates reflect average change in HRQL over the early or late time period.

Model 1: Adjusted for baseline age, sex, diagnosis, baseline body mass index, forced expiratory volume in 1 second, six minute walk distance, and Lung Allocation Score; Model 2: Model 1 + change in Lung Transplant Valued Life Activities (LT-VLA) disability over time. Model 2 reflects the average change in HRQL that is not accounted for by change in LT-VLA disability.

SF12-PCS = Medical Outcomes Study Short Form 12 Physical Component Summary scale ; SF12-MCS = Medical Outcomes Study Short Form 12 Mental Component Summary scale; AQ20-R = Airway Questionnaire 20 - Revised; score reversed for ease of interpretation); EQ5D = Euroqol 5D; EQVAS = Euroqol Visual Analog Scale; MCID = Minimally Clinically Important Difference