Table 2. TUG signal derived measures of walking in subjects with and without IADL disability.

Measures		IADL disability	No IADL disability	P-value
Overall TUG (including all components)
TUG duration [s]		13.59±4.21	10.88±2.51	<0.0001*
Walking component (after removing turns)
Duration of entire walking portion [s]		7.51±2.97	5.88±1.63	<0.0001*
Number of steps	V	12.70±4.40	9.90±2.35	<0.0001*
Step regularity [g∧2]	V	0.49±0.13	0.53±0.14	0.054
	AP	0.46±0.14	0.48±0.14	0.253
	ML	−0.37±0.16	−0.34±0.12	0.262
Stride regularity [g∧2]	V	0.39±0.14	0.44±0.15	0.026
	AP	0.37±0.13	0.44±0.15	0.015*
	ML	0.34±0.14	0.31±0.11	0.177
Step duration [s]	V	59.57±5.02	58.98±6.74	0.402
Range	V	0.96±0.23	1.12±0.26	0.004*
	AP	0.86±0.161	0.92±0.20	0.516
	ML	0.65±0.19	0.78±0.26	0.088
	YAW	92.88±25.33	96.76±24.20	0.187
	PITCH	104.93±29.34	115.16±36.88	0.727
	ROLL	62.24±20.21	70.62±24.84	0.062

^*indicates those measures that significantly differed in the two groups, after correcting for multiple comparisons using the Benjamini-Hochberg method (i.e., using a threshold of p = 0.015). All entries are adjusted for age and gender.