Table 3.

Comparison of BMD levels before and after treatment (x̅ ± sd, g/cm³)

Items	Group A (n=115)	Group B (n=100)	t	P
Lumbar spine L1-L4
Before treatment	0.61±0.12	0.62±0.09	0.683	0.496
After treatment	0.82±0.11***	0.83±0.13***	0.611	0.542
Left femoral neck
Before treatment	0.69±0.12	0.68±0.10	0.658	0.511
After treatment	0.88±0.15***	0.87±0.14***	0.503	0.616
Right femoral neck
Before treatment	0.42±0.08	0.40±0.11	1.538	0.126
After treatment	0.59±0.11***	0.57±0.12***	1.275	0.204

Note: Compared with the same group before treatment;

^***P < 0.001.

BMD: bone mineral density.