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Table 4 Cronbach’s Alpha coefficients for Time 1 and Time 2

From: Portuguese validation of the Cambridge pulmonary hypertension outcome review (CAMPHOR) questionnaire

Instruments Reliability coefficient
Time 1
(n = 50)
Time 2
(n = 47)
CAMPHOR
 Symptoms 0.95 0.95
 Activities 0.93 0.95
 QoL 0.94 0.94
  1. Abbreviations: CAMPHOR Cambridge Pulmonary Hypertension Outcome Review, NHP Nottingham Health Profile, QoL quality of Life