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. Author manuscript; available in PMC: 2016 Mar 9.
Published in final edited form as: J Heart Lung Transplant. 2015 Mar 27;34(8):1058–1065. doi: 10.1016/j.healun.2015.03.005

Table 2.

Pulmonary-specific Quality-of-Life Scale Internal Reliability

Coefficient alpha
All (n = 388) Obstructive (n = 188) Restrictive (n = 93) CF (n = 53) Other (n = 54)
PQLS total 0.88 0.86 0.88 0.89 0.89
Sub-scales
 Physical 0.80 0.83 0.80 0.82 0.66
 Psychological 0.83 0.84 0.83 0.83 0.82
 Task Interference 0.84 0.79 0.86 0.83 0.89

CF, cystic fibrosis; PQLS, Pulmonary-specific Quality-of-Life Scale.