Table 1. BMD of lumbar vertebrae pre-induction and post-induction (n = 8, means ± SD).

BMD (g/cm2)	1	2	3	4	5	6	7	8	Mean
Pre-induction	1.16	1.19	1.28	0.97	1.05	1.14	1.08	1.25	1.14±0.10
Post-induction	0.84	0.86	0.91	0.72	0.77	0.85	0.80	0.92	0.83±0.07*
Decrease (%)	27.6	27.7	28.9	25.8	26.7	25.4	25.9	28.0	27.2

BMD indicates bone mineral density;

^*Compared with Pre-induction, p<0.05.