Parameters* 2 mg (n=31) 4 mg (n=33) P
Percentage change in LS-BMD 4.86±3.05 5.35±3.73

That translates into percent change of 1.81 to 7.91 for the 2 mg group
and 1.62 to 9.08 for the 4 mg group. And they claim the difference in average of 4.86 and 5.35 is significant. Maybe in the rigorous world of statistics but not in the real world of patients.