Table 2.

Association of gait parameters with disability in the Cox proportional hazard regression model.

	Crude		Adjusted
	HR (95% CI)	P value	HR (95% CI)	P value
Low daily gait speed (ref: high speed)	3.71 (1.53–9.02)	< 0.01*	2.97 (1.17–7.56)	0.02*
Low in-laboratory gait speed (ref: high speed)	4.12 (2.20–7.69)	< 0.01*	2.53 (1.27–5.01)	0.01*
Low number of steps (ref: high steps)	2.65 (1.16–6.10)	0.02*	1.99 (0.83–4.78)	0.12

HR = hazard ratio; ref = reference, *p < 0.05.

Low and High daily gait speed: participants with daily gait speed of < 106.3 cm/s and of ≥ 106.3 cm/s, respectively.

Low and High in-laboratory gait speed: participants with in-laboratory gait speed of < 100.0 cm/s and of ≥ 100.0 cm/s, respectively.

Low and High steps: participants with number of steps of < 6342.2 steps and of ≥ 6342.2 steps, respectively.