exact test was used to compare the ratio of male to female
patients, percentages of patients who had fallen in the past year, percentages of patients with prior clinical fractures, and the incidences of falls and fall-related fractures between the two groups. All statistical analyses were performed using the Stat View J 5.0 program (SAS Institute, Cary, NC, USA). The significance level was set at P,0.01 for all comparisons.