Comparison of self-reported and performance-based measures of functional ability in elderly patients in an emergency department: implications for selection of clinical outcome measures

Table 2 Correlation between Barthel-20, Timed Up and Go, 30s. Chair-Stand Test and Assessment of Motor and Process Skills

	TUG^a	30s-CST	AMPS Motor	AMPS Process
Barthel-20
r (95%CI)	−0.64 (−0.79:-0.44)	0.45 (0.22:0.64)	0.53 (0.29:0.71)	0.06 (−0.23:0.33)
n	47	57	49	49
Barthel-20 mobility
r (95%CI)	−0.66 (−0.79:-0.45)	0.38 (0.13:0.58)
n	47	57
Barthel-20 activities ^b
r (95%CI)			0.62 (0.41:0.77)	0.24 (−0.04:0.49)
n			49	49

^aCorrelations with the TUG test were expected to be negative as lower score in TUG reflects better outcome
^bItems 1,3,4,5,8 in the Barthel-20 are related to daily activities

ISSN: 1471-2318