Can secondary osteoporosis be identified when screening for osteoporosis with digital X-ray radiogrammetry? Initial results from the Stockholm Osteoporosis Project (STOP)

•Women attending mammography screening had their bone mass evaluated with digital X-ray radiogrammetry (DXR).•Those with the lowest bone mineral density as determined by DXR were referred for standard DXA examination (n=327).•Of these 327 women, 93 had osteoporosis.•The diagnosis was new in 79 cases (85%) and a potential underlying cause was identified in 32 cases (34%). Primary hyperparathyroidism was found in 9% and secondary hyperparathyroidism in 14%.