Table 2.

Mean percent change in BMD in women treated with alendronate alone (group 1), teriparatide alone (group 2), or both (group 3)

Bone site	Group 1 mean percent change	Group 2 mean percent change	Group 3 mean percent change	Group 1 vs. group 2	P value Group 1 vs. group 3	Group 2 vs. group 3
Lumbar spine	6.8 ± 4.2	17.8 ± 10.9	11.9 ± 9.2	<0.001	0.011	0.045
Femoral neck	3.5 ± 4.4	10.8 ± 5.2	3.1 ± 4.5	<0.001	0.75	<0.001
Total hip	3.1 ± 4.6	8.1 ± 5.7	2.9 ± 4.8	<0.001	0.96	0.004
Radial shaft	0.7 ± 3.3	−7.1 + 4.1	−2.5 + 4.0	<0.001	0.006	0.002
Total body	4.8 ± 2.5	3.6 ± 3.5	4.0 ± 3.2	0.11	0.42	0.53
Spinal trabecular bone density on quantitative computed tomography	1 ± 7	61 ± 31	24 ± 24	<0.001	<0.001	<0.001