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Table 3 Inter-rater correlation and percentage agreement for individual domains of the POMS on days 1, 3, 5 and cumulatively

From: Measuring outcomes after major abdominal surgery during hospitalization: reliability and validity of the Postoperative Morbidity Survey

  Day 1 (n = 51) Day 3 (n = 51) Day 5 (n = 40) Total (n = 263)
  Percentage agreement κ Percentage agreement κ Percentage agreement κ Percentage agreement κ
Cardiovascular 94.1 0.876 (0.740-1.0) 100 1.0 (1.0-1.0) 97.5 0.655 (−0.012-1.0) 96.6 0.828 (0.718-0.939)
Gastrointestinal 88.2 0.555 (0.221-0.890) 84.3 0.651 (0.443-0.858) 87.5 0.658 (0.377-0.938) 87.5 0.749 (0.669-0.829)
Hematological 80.4 0.069 (−0.448-0.587) 100 1.0 (1.0-1.0) 100 N/A 95.4 0.378 (0.035-0.722)
Infectious 98.0 0.929 (0.793-1.0) 98.0 0.935 (0.810-1.0) 95.0 0.804 (0.539-1.0) 98.1 0.938 (0.884-0.992)
Neurological 96.1 0.480 (−0.227-1.0) 96.1 0.779 (0.479-1.0) 97.5 0.655 (−0.012-1.0) 97.0 0.717 (0.524-0.910)
Pain 100 1.0 (1.0-1.0) 86.3 0.71 (0.511-0.90) 90.0 0.610 (0.247-0.973) 93.5 0.869 (0.809-0.929)
Pulmonary 100 1.0 (1.0-1.0) 94.1 0.870 (0.727-1.0) 95.0 0.890 (0.742-1.0) 96.2 0.906 (0.852-0.960)
Renal 98.0 0.658 (−0.007-1.0) 96.1 0.897 (0.757-1.0) 92.5 0.845 (0.677-1.0) 95.1 0.869 (0.802-0.936)
Wound 98.0 0.0 (−1.0-1.0) 100 N/A 100 N/A 99.2 −0.004 (−1.0-1.0)
  1. Some κ coefficients could not be calculated as all observations occurred in a single domain, and are labeled N/A.