Table 2. Multivariable negative binomial regression of selected falling risk parameters built with the whole population at a minimum of 200 steps. B coefficient and P values were based on z-transformed data. The area under the curve was 0.69.

Gait domain and parameter		B coefficient	P value
Quantity
	Number of steps	0.20	.03
Intensity
	Cadence (steps/min)	1.50	.02
Variability
	CoVa of stride time	0.43	<.001
Complexity
	DFAb on step time	−1.79	.02
	SEc on step time	−1.08	.04
	SE on stride time	−1.30	.04

^aCoV: coefficient of variance.

^bDFA: detrended fractal analysis.

^cSE: sample entropy.