A total of 612 postmenopausal women were screened to obtain the 381 who were enrolled. Over one half of the screen failures were caused by BMD values being too low (Fig. 1). At randomization, there were no differences (p > 0.1) in demographic characteristics, serum chemistries, or percent ucOc observed between treatment groups (Table 1). Body weightdid not change over the course of the study (data not shown).