Table 1. Comparison of Stage A and Stage C Results
ParameterStage A ResultStage C ResultP ValueCluster-Adjusted P Value
Age, years (mean ± SD)72.7 ± 10.273.4 ± 9.2.048*
Female sex1919/2107 (91.1%)1698/1814 (93.6%).003
Fracture of hip, spine, or distal radius (yes)576/2107 (27.3)482/1814 (23.8).01
Diagnosed with osteoporosis1200/2107 (57.0)1045/1814 (57.6).68
Central DXA measurement since age 601267/1622 (78.1)1278/1537 (83.2).0003.03
Central DXA measurement ordered or performed376/569 (66.1)355/429 (82.8)<10−5.002
Prescribed pharmacologic therapy1111/2084 (53.3)1062/1805 (58.8).0005.02
Prescribed calcium and vitamin D1082/1200 (90.2)993/1045 (95.0).00001.02
Counseling for calcium, vitamin D, and exercise949/1200 (79.1)940/1045 (90.0)<10−5<.0001
  • Data are n/N (%) unless otherwise indicated.

  • * 2-sample t test.

  • χ2 test.

  • DXA, dual X-ray absorptiometry; SD, standard deviation.