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Table 1 Characteristics of entire study cohort and stratifying by past year fall history

From: Too much or too little step width variability is associated with a fall history in older persons who walk at or near normal gait speed

  Total sample N = 503 No falls N = 422 ≥1 fall N = 81 P-value*
Age (years) 79.3 (4.1) 79.1 (3.9) 80.3 (5.1) .02
Weight (lbs) 154.9 (28.9) 154.8 (28.3) 155.0 (32.4) .96
Height (cm) 164.3 (9.3) 164.5 (9.4) 163.0 (9.0) .18
ADL difficulty n (%) 148 (29.4) 122 (28.9) 26 (32.1) .56
African American n (%) 113 (22.5) 93 (22.0) 20 (24.7) .80
Female n (%) 306 (60.8) 248 (58.8) 58 (71.6) .03
Gait Characteristics     
   Step width (m) 0.21 (.04) 0.22 (0.04) 0.21 (0.05) .46
   Step length (m) 0.57 (0.09) 0.57 (0.09) 0.56 (0.10) .14
   Stance time (s) 0.73 (0.09) 0.73 (0.09) 0.73 (0.10) .71
   Step time (s) 0.56 (0.06) 0.56 (0.06) 0.56 (0.06) .81
   Gait speed (m/s) 1.03 (0.21) 1.04 (.20) 1.02 (.23) .40
  1. * P-values are for independent t-test comparing continuous data and chi square comparing categorical data between individuals who reported no falls and those who reported ≥ 1 fall in the past year.