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Table 3 Changes in gait velocity as a function of time and treatment group

From: An initial loading-dose vitamin D versus placebo after hip fracture surgery: randomized trial

  Active N Placebo n Significancea
Change in Gait Velocity      
- Baseline to week 2 0.173 +/−0.259 107 0.155 +/−0.255 106 0.608
- Baseline to week 4 0.419 +/−0.295 106 0.389 +/−0.325 104 0.490
- Baseline to week 26 0.753 +/−0.264 83 0.738 +/−0.258 80 0.718
- Week 2 to Week 4 0.250 +/−0.238 106 0.232 +/−0.249 104 0.582
- Week 2 to Week 26 0.549 +/−0.307 83 0.568 +/−0.282 80 0.694
- Week 4 to Week 26 0.316 +/−0.300 83 0.359 +/−0.356 80 0.404
  1. aSignificance level is shown for the time by group interaction (note for comparisons to baseline of 0, group and group by time interactions are identical). All changes over time across both groups reached significance at p = 0.000