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. Author manuscript; available in PMC: 2016 Nov 9.
Published in final edited form as: Osteoporos Int. 2009 Oct 3;21(7):1277–1285. doi: 10.1007/s00198-009-1077-9

Table 1.

Baseline characteristics

Zoledronic acid (n=122) Placebo (n=111)
Age at randomization, years 74.2±5.6 74.3±6.4
Age at time of menopause, years 48.2±5.8 46.8±5.7
Race
 Caucasian 90 (73.8) 89 (80.2)
 Asian 32 (26.2) 22 (19.8)
Body mass index, kg/m2 25.0±4.3 24.8±3.9
Prior bisphosphonate usage
 Yes 108 (88.5) 91 (82.0)
 No 14 (11.5) 19 (17.1)
 Missing 0 1 (0.9)
Baseline vertebral fracture
 Yes 68 (55.7) 63 (56.8)
 No 54 (44.3) 48 (43.2)
Patients with three infusions 92 (75.4) 83 (74.8)
Corrected BMD, g/cm3
 Lumbar spine 0.807±0.119 (n=67) 0.802±0.137 (n=68)
 Femoral neck 0.565±0.081 (n=97) 0.560±0.083 (n=86)
 Total hip 0.681±0.101 (n=97) 0.672±0.097 (n=86)

Data are expressed as n (%) or mean+SD