Table 4

Association of step width variability with past year fall history: Odds Ratios (95% Confidence interval) and Adjusted Odds Ratios (95% Confidence interval) for age, gender and gait speed.

Model 1

Model 2

Model 3

Total Sample n = 503

Mod step width CV* N = 455

1

1

1

Low/High Step width CV N = 48

2.65 (1.36, 5.14)

2.70 (1.37, 5.31)

2.76 (1.40, 5.45)

Age (years)

1.08 (1.02, 1.14)

1.08 (1.02, 1.15)

Gender

.55 (.33, .93)

.51 (.30, .89)

Gait speed (m/s)

1.32 (.38, 4.63)

Speed < 1.0 m/s N = 222

Mod Step width CV N = 199

1

1

1

Low/High Step width CV N = 23

1.42 (.49, 4.08)

1.56 (.52, 4.70)

1.56 (.50, 4.79)

Age (years)

1.08 (1.00, 1.17)

1.08 (.99, 1.17)

Gender

.42 (.17, 1.02)

.38 (.15, .99)

Gait speed (m/s)

.22 (.01, 4.33)

Speed ≥ 1.0 m/s N = 281

Mod Step width CV N = 256

1

1

1

Low/High Step width CV N = 25

4.35 (1.81, 10.47)

4.38 (1.79, 10.72)

4.38 (1.79, 10.72)

Age (years)

1.09 (1.00, 1.18)

1.09 (1.00, 1.19)

Gender

.67 (.33, 1.33)

.65 (.32, 1.31)

Gait speed (m/s)

1.62 (.12, 21.11)

*CV = coefficient of variation

Brach et al. Journal of NeuroEngineering and Rehabilitation 2005 2:21   doi:10.1186/1743-0003-2-21