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Table 2 Baseline characteristics of intervention and reference group subjects: descriptive statistics and group comparisons. Values are means ±SD (95 % confidence interval for means)

From: Unexpected perturbations training improves balance control and voluntary stepping times in older adults - a double blind randomized control trial

  Intervention Group (N = 27) Control Group (N = 26) p-value
Age (year) 78.2 ± 5.6 81.4 ± 4.3 0.05
% Female 62 % 79 % 0.25
Number drugs/day 3.3 ± 1.7 4.2 ± 2.4 0.18
Height (cm) 161.5 ± 10.9 154.9 ± 6.9 0.03
Weight (Kg) 70.9 ± 14.9 65.5 ± 12.9 0.23
BMI (Kg /m2) 27.1 ± 4.4 27.8 ± 5.1 0.64
Mini-Mental State Examination 29.1 ± 1.4 28.7 ± 1.4 0.49
Fall efficacy scale 20.5 ± 4.3 22.8 ± 10.3 0.36
POMA score 14.8 ± 1.3 14.7 ± 1.4 0.87
Late life function
 - Overall Function 66.8 ± 9.6 66.5 ± 6.7 0.90
 - Upper Extremity Function 82.9 ± 11.7 79.2 ± 8.0 0.26
 - Basic Lower Extremity Function 82.4 ± 12.4 81.3 ± 13.6 0.79
 - Advanced Lower Extremity Function 59.6 ± 12.4 61.2 ± 10.4 0.66
  1. Note: p-value compares baselines means in the two groups and, unless otherwise indicated, are based on t-test or chi-square. * P-value based on Wilcoxon signed rank test and Mann–Whitney U test. Abbreviations: cm centimeters, Kg Kilograms, Kg/m 2 kg per meter squared