Table 2 Cox regression analysis of the relationship between gait variables and disability incidence

Gait speed

1.10 m/s

Low function

4.66 [3.85–5.64]

< .001

2.06 [1.65–2.57]

< .001

High function

Reference

Reference

Stride length

1.15 m

Low function

4.86 [4.00–5.91]

< .001

2.17 [1.72–2.73]

< .001

High function

Reference

Reference

Cadence

116.5 steps/min

Low function

1.90 [1.55–2.32]

< .001

1.49 [1.20–1.86]

< .001

High function

Reference

Reference

Stride length variability

2.86%

Low function

2.26 [1.85–2.77]

< .001

1.46 [1.19–1.80]

< .001

High function

Reference

Reference