Defining ICD-10 surrogate variables to estimate the modified frailty index: a Delphi-based approach

BMC Geriatrics

Table 2 Measure of Agreement between Intensivists and Geriatricians

		Delphi survey 1 κ statistic^	Delphi survey 2 κ statistic^	Delphi survey 3 κ statistic^
All eleven mFI variables combined		0.728	0.811	0.780
Individual mFI variables
1	Functional status - not independent	0.969	0.846	0.783
2	History of hypertension requiring medication	0.851	0.925	0.963
3	History of chronic obstructive pulmonary disease or pneumonia	0.742	0.827	0.827
4	History of impaired sensorium	0.748	0.806	0.766
5	History of Diabetes Mellitus	0.915	1.000	1.000
6	History of myocardial infarction	0.794	1.000	1.000
7	History of congestive heart failure	0.830	*	*
8	History of cerebrovascular accident with neurologic deficit	0.744	0.600	*
9	History of transient ischemic attack without neurologic deficit	1.000	0.749	0.749
10	History of percutaneous coronary intervention, angina, or stenting	1.000	1.000	1.000
11	History of peripheral vascular disease or ischaemic rest pain	0.828	0.769	0.769

κ statistic [12]: 0–0.20 - no agreement 0.21–0.39 - minimal agreement 0.40–0.59 - weak agreement 0.60–0.79 - moderate agreement 0.80–0.90 - strong agreement
> 0.90 - almost perfect agreement
^ The p-value was < 0.001 for all
* No statistics was computed

ISSN: 1471-2318