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

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

	Active	N	Placebo	n	Significance^a
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

^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

ISSN: 1471-2474