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Table 2 Percentage agreement and Kappa co-efficient of frailty assessments

From: Utility and reliability of the Clinical Frailty Scale in patients scheduled for major vascular surgery: a prospective, observational, multicentre observer-blinded study

Paired background

Percentage agreement P(a)

Kappa statistics (k)

Z

P value

Researcher EFS and consultant CFS

87.6%

0.53

0.52

< 0.001

Researcher EFS and nurse CFS

87.6%

0.50

4.92

< 0.001

Consultant CFS and nurse CFS

89.7%

0.61

5.99

< 0.001

  1. EFS Researcher Edmonton Frailty Scale assessment compared to the pre-assessment consultant, CFS Clinical Frailty Scale assessment; researcher Edmonton Frailty Scale assessment compared to staff nurse Clinical Frailty Scale assessment: and consultant Clinical Frailty Scale assessment compared to Staff Nurse Clinical Frailty Scale assessment across both hospital sites. Levels of agreement using the Kappa coefficient values were set at < 0 = no agreement; 0–0.20 =slight agreement; 0.21–0.40 = fair agreement; 0.41–0.60 = moderate agreement; 0.61–0.80 = substantial agreement; 0.81–1.0 = almost perfect agreement
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Perioperative Medicine

ISSN: 2047-0525