Positive predictive value of the diagnosis coding for vitamin B12 deficiency anemia in the Danish National Patient Register

by Ben Ghezala I, Arendt JF, Erichsen R, Zalfani J, Gammelager H, Frøslev T, Olsen M
Published 2012-12-01

Positive predictive value of the International Classification of Diseases, 10th edition diagnosis codes for anemia caused by bleeding in the Danish National Registry of Patients

by Zalfani J, Frøslev T, Olsen M, Ben Ghezala I, Gammelager H, Arendt JFB, Erichsen R
Published 2012-11-01

Validity of an algorithm to identify osteonecrosis of the jaw in women with postmenopausal osteoporosis in the Danish National Registry of Patients

by Gammelager H, Sværke C, Noerholt SE, Neumann-Jensen B, Xue F, Critchlow C, Bergdahl J, Lagerros YT, Kieler H, Tell GS, Ehrenstein V
Published 2013-08-01

Hospitalization rate and 30-day mortality among patients with status asthmaticus in Denmark: a 16-year nationwide population-based cohort study

by Strid JM, Gammelager H, Johansen MB, Tønnesen E, Christiansen CF
Published 2013-09-01

Hospital use among patients with lung cancer complicated by bone metastases and skeletal-related events: a population-based cohort study in Denmark

by Skov Dalgaard K, Gammelager H, Sværke C, Kurics T, Cetin K, Christiansen CF
Published 2015-08-01

Hospital visits among women with skeletal-related events secondary to breast cancer and bone metastases: a nationwide population-based cohort study in Denmark

by Svendsen ML, Gammelager H, Svaerke C, Yong M, Chia VM, Christiansen CF, Fryzek JP
Published 2013-03-01

Control of confounding in the analysis phase – an overview for clinicians

by Kahlert J, Gribsholt SB, Gammelager H, Dekkers OM, Luta G
Published 2017-03-01

Evaluation of an algorithm ascertaining cases of osteonecrosis of the jaw in the Swedish National Patient Register

by Svensson M, Kieler H, Granath F, Gammelager H, Ehrenstein V, Jarnbring F, Bergdahl J, Tell GS, Trolle Lagerros Y
Published 2013-01-01

Liver disease and mortality among patients with hip fracture: a population-based cohort study

by Montomoli J, Erichsen R, Gammelager H, Pedersen AB
Published 2018-08-01