“Reliability of the Norwegian version of the short physical performance battery in older people with and without dementia”

Table 1 Baseline characteristics and SPPB summary score at test 1 and 2 for all participants and for group comparison dementia/no dementia

Variable^a	All participants N = 61	Participants with dementia n = 24	Participants without dementia n = 37	P-value
Age	88.4 (8.1), (67–102)	88.3 (6.2), (69–97)	88.4 (9.2) (67–102)	.958^e
Sex
Women	50 (82)	21 (87.5)	29 (78.4)	.572^f
Men	11 (18)	3 (12 .5)	8 (21.6)
Use of walking aids
Frame/rollator	36 (59.0)	13 (54.2)	23(62.2)	.307^f
Cane	3 (4.9)	0	3 (8.1)
Other	6 (9.9)	3 (12.5)	3 (8.1)
None	16 (26.2)	8 (33.3)	8 (21.6)
Type of dwelling
Nursing Home	39 (63.9)	24 (100)	15 (40.5)	.001^f
Home	22 (36.1)	0	22 (59.5)
Number of days between tests	2.5(1.5), (1–7)	2.5 (1.3), (1–6)	2.5 (1.6), (1–7)	.972^f
SPPB^b summary score test 1	3.7 (2.4), (0–10)	2.2 (1.4), (0–4)	4.7 (2.4), (1–10)	.001^e
SPPB^b summary score test 2	4.1 (2.5), (0–9)	2.4 (2.0), (0–7)	5.2 (2.1), (1–9)	.001^e
Gait speed m/s	0.47 (0.17) (0.13–0.97)	0.40 (0.16) (0.13–0.79)	0.51 (0.17) (0.22–0.97)	.02^e

^aContinuous variables are expressed in mean (SD), (min-max), categorical variables are expressed in number (%).
^bShort Physical Performance Battery (SPPB), min-max = 0–12, higher score indicates better function
^eIndependent sample t-test ^fChi-Square test

ISSN: 1471-2318