High inter-rater reliability of Japanese bedriddenness ranks and cognitive function scores: a hospital-based prospective observational study

Table 5 Differences of cognitive function score between assessments by nurses and by other staff

Cognitive function score			Assessment 2								Total		Concordance rate %
Cognitive function score		Normal	1	2a	2b	3a	3b	4	M	Unknown	n	%	Concordance rate %
Assessment 1	Normal	79	7	3	0	1	1	0	0	1	92	33.9	85.9
	1	10	30	2	1	3	1	0	0	0	47	17.3	63.8
	2a	4	2	9	1	3	0	0	0	0	19	7.0	47.4
	2b	3	3	6	14	2	2	0	0	0	30	11.1	46.7
	3a	0	1	1	10	45	2	1	0	0	60	22.1	75.0
	3b	0	0	1	0	0	7	0	0	0	8	3.0	87.5
	4	0	0	0	0	0	1	6	0	1	8	3.0	75.0
	M	0	0	0	0	0	0	0	0	0	0	0.0	0
	Unknown	2	0	2	0	1	2	0	0	0	7	2.6	NA
Total		98	43	24	26	55	16	7	0	2	271	100	70.1

The cognitive function score, routinely checked by a nurse, was derived from the medical charts for Assessment 1. In Assessment 2, the cognitive function score was checked independently within 72 h after admission, without knowing the results of Assessment 1, by a medical social worker or a medical clerk, i.e. a person of medical profession other than a nurse

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