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Table 4 Internal consistency reliability

From: Quality of life after pulmonary embolism: validation of the French version of the PEmb-QoL questionnaire

  PEmb-QoL questions Number of items Cronbach’s alpha Average inter-item correlation (r)
Frequency of complaints Q1 8 0.90 0.52
Activities of daily living limitations Q4 13 0.95 0.60
Work-related problems Q5 4 0.91 0.72
Social limitations Q6 1 - -
Intensity of complaints Q7, Q8 2 0.70 0.54
Emotional complaints Q9 10 0.92 0.52
PEmb-QoL summary score Q1, Q4, Q5, Q6, Q7, Q8, Q9 38 0.92 0.44