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. 2017 Jun;17(2):19–26.

Table 3.

Pre and post-treatment mean values of BMD (g/cm2) and Z-scores for the study and control groups.

Character Study group Control group T-Value P-Value
Mean ± SD Mean ± SD
L1-L4 BMD (g/cm2) Pre 0.69 ± 0.07 0.67 ± 0.08 0.56 0.57*
Post 0.85 ± 0.04 0.72 ± 0.05 6.69 <0.001**
Effect size Cohen’s d=2.87
L1-L4 Z-score Pre -1.65±0.44 -1.55 ± 0.39 -0.65 0.52*
Post -0.87 ± 0.33 -1.28 ± 0.37 3.2 0.003**
Effect size Cohen’s d=1.17
Proximal Femur BMD (g/cm2) Pre 0.53 ± 0.08 0.56 ± 0.06 -1.14 0.26*
Post 0.75 ± 0.05 0.62 ± 0.04 7.23 <0.001**
Effect size Cohen’s d=2.87
Proximal Femur Z-score Pre -0.83 ± 0.26 -0.77 ± 0.33 -0.61 0.55*
Post -0.41 ± 0.26 -0.57 ± 0.29 1.6 0.12*
Effect size Cohen’s d=0.58

BMD: Bone Mineral Density. Level of significance at P<0.05.

*

Nonsignificant.

**

Significant.