Inter-rater reliability of data elements from a prototype of the Paul Coverdell National Acute Stroke Registry

BMC Neurology

Table 5 Inter-rater reliability for discharge related data.

Variable (Item Number)	Dichotomous response option	N	PI*	Kappa (95% LCL)†	BI‡
Discharge destination (12.3)	Home (routine)	104	-0.22	0.38 (0.23)	0.26
	Skilled nursing facility	104	-0.88	0.00	0.13
	Rehabilitation	104	-0.78	0.30 (0.23)	0.14
Ambulatory status at discharge (12.5)	Yes – Independent	104	0.19	0.52 (0.36)	0.04
	Yes – With assistance	104	-0.64	0.19 (-0.03)	-0.09
	No – Unable	104	-0.71	0.69 (0.49)	0.02
On lipid lowering medication at D/C (12.11)	Yes	104	-0.35	0.78 (0.65)	0.04
On diabetes medication at D/C (12.13)	Yes	104	-0.55	0.86 (0.75)	0.03
On anti-hypertensive medication at D/C (12.16)	Yes	104	-0.44	0.78 (0.59)	-0.02
On anti-thrombotic therapy at D/C (12.20)	Yes – Aspirin	104	-0.17	0.76 (0.64)	-0.02
	Yes – Warfarin	104	-0.58	0.94 (0.86)	0.00
	None given	104	-0.60	0.76 (0.60)	-0.02

* PI = Prevalence Index (see Table 1 footnote for interpretation). † 95% LCL = 95% Lower Confidence Limit. ‡ BI = Bias Index (see Table 1 footnote for interpretation). D/C = discharge, skilled nursing facility = nursing home.

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