Table 3.

Recognition of cognitive impairment

	Abnormal cognitive test results			Statistic	p value	Significant post-hoc differences*
	0	1	2
	n = 55	n = 68	n = 77
Subjective memory complaints yes/no	67%	73%	65%	χ2(2, N = 200) = 1.45	0.48	-
Subjective memory complaints QoL-AD	48%	55%	59%	χ2(2, N = 200) = 1.74	0.42	-
Cognitive impairment recognised by informant QoL-AD	24%	39%	77%	χ2(2, N = 141) = 29.05	<0.001	b
Cognitive impairment recognised by staff physician	9%	12%	44%	χ2(2, N = 200) = 29.84	<0.001	b, c
Cognitive impairment recognised by staff nurse	15%	12%	64%	χ2(2, N = 200) = 55.44	<0.001	b, c

Recognition of cognitive impairment.

* Significant differences (p < 0.05) after Bonferroni correction:

a = between 0 vs 1 abnormal cognitive test.

b = between 0 vs 2 abnormal cognitive tests.

c = between 1 vs 2 abnormal cognitive tests.

QoL-AD = Quality of life in Alzheimer’s disease.