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Table 2 Percentage of patients who reported the lowest and highest possible score, intraclass correlation coefficients for test-retest reliability for patients reporting no global change and Cronbach’s alpha for patient and staff responses at baseline

From: Validity and reliability of the English and translated Chinese versions of the Integrated Palliative care Outcome Scale (IPOS) in Singapore

  Number of items Mean (SD) Descriptive statistics Test-retest Cronbach’s alpha
% with min score % with max score ICC 95% CI Patient Staff
English   N = 111 N = 111 N = 30 N = 111 N = 143
Total 17 17.77 (10.99) 1.80 0.00 0.80 0.67–0.93 0.88 0.84
 Physical 10 8.50 (6.95) 9.01 0.00 0.77 0.63–0.92 0.84 0.74
 Emotional 4 5.85 (3.96) 7.21 1.8 0.72 0.55–0.90 0.80 0.82
 Communication and Practical Issues 3 3.16 (2.31) 16.21 0.00 0.53 0.27–0.79 0.58 0.65
Chinese   N = 109 N = 109 N = 27 N = 109
Total 17 14.45 (10.10) 1.83 0.00 0.88 0.80–0.97 0.84
 Physical 10 7.87 (7.19) 13.76 0.00 0.93 0.87–0.98 0.82
 Emotional 4 4.52 (3.30) 11.01 0.00 0.80 0.66–0.94 0.68
 Communication and Practical Issues 3 2.87 (2.19) 18.34 0.00 0.45 0.15–0.76 0.29