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Table 2 Arabic SRI Questionnaire reliability

From: Validation of the Arabic Severe Respiratory Insufficiency Questionnaire

Scale Number (n) Mean ± SD scores Score ranges (min–max) Cronbach’s alpha α
SRI-RC 8 items 67.5 ± 18.3 21.88–100.00 0.8
SRI-PF 6 items 42.25 ± 23.7 0–100.00 0.79
SRI-AS 7 items 66.82 ± 18.66 17.85–100.00 0.72
SRI-SR 6 items 69.49 ± 20.0 25.00–100.00 0.79
SRI-WB 5 items 59.86 ± 19.96 19.44–100.00 0.82
SRI-AX 9 items 64.73 ± 22.42 10.00–100.00 0.87
SRI-SF 8 items 57.27 ± 19.39 17.85–100.00 0.76
SRI-SS 7 scales 60.98 ± 16.0 24.73–99.5 0.89
  1. Bold value is the Cronbach’s alpha for the summary scale
  2. RC respiratory complaints, PF physical functioning, AS Attendant symptoms and sleep, SR social relationships, AX anxiety, WB psychosocial well-being, SF social functioning, SS summary scale, SD standard deviation