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Table 7 Number of recurrences at different time points in patients who received Dangguixu-san or placebo for acute lateral ankle sprain (n = 23 each)

From: Effects of Dangguixu-san in patients with acute lateral ankle sprain: a randomized controlled trial

Dependent variables DS (n = 23) Placebo (n = 23) z (p)a
(M ± SD) (M ± SD)
Total relapse 0.61 ± 1.34 0.13 ± 0.46 − 1.83 (0.068)
Week 5 relapse 0.13 ± 0.34 0.09 ± 0.42 − 0.96 (0.334)
Week 9 relapse 0.00 ± 0.00 0.00 ± 0.00 − 0.00 (1.00)
Week 13 relapse 0.26 ± 1.05 0.04 ± 0.21 − 0.62 (0.538)
Week 27 relapse 0.22 ± 0.52 0.00 ± 0.00 − 2.61 (0.039)
  1. aMann-Whitney U test