Research Article
Comparison of Different Disease-Specific Health-Related Quality of Life Measurements in Patients with Long-Term Noninvasive Ventilation
Table 2
Correlations between HRQL questionnaires.
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Missing values (—) indicate no significant relationships (). High correlations (correlation coefficient > 0.70), excluding summary and total scores, are in bold; HRQL = health-related quality of life; SRI = Severe Respiratory Insufficiency; MRF = Maugeri Respiratory Failure; SGRQ = St. George’s Respiratory Questionnaire. |