Table 3.

Results of Student’s t test for comparison between bone densities of every two groups at each study intervals including mean and standard deviation (SD) values

Period	Mean value ± SD			P value
	Group A	Group B	Group C	A–B	B–C	A–C
Baseline	159.90 ± 18.79	161.54 ± 14.27	162.49 ± 15.91	0.88	0.92	0.82
2 weeks	152.32 ± 9.59	150.88 ± 6.32	117.17 ± 18.02	0.92	0.02*	0.034*
4 weeks	154.59 ± 13.34	153.82 ± 8.84	133.71 ± 13.59	0.79	0.007*	0.005*