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2012

Significance of age and comorbidity on treatment modality, treatment adhesion and prognosis in ovarian cancer patients

Jørgensen, T. L., Teiblum, S., Paludan, M., Poulsen, L. Ø., Jørgensen, A. Y. S., Bruun, K. H., Hallas, J. & Herrstedt, J., 2012.

Publikation: Konferencebidrag uden forlag/tidsskriftPosterForskning

Excessive anticoagulation with warfarin or phenprocoumon may have multiple causes

Meegaard, P. M., Holck, L. H. V., Pottegård, A., Madsen, H. & Hallas, J., 2012, I : Danish Medical Journal. 59, 2, s. A4383

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

Phenprocoumon
Warfarin
2016

Use of selective serotonin receptor inhibitors (SSRIs) is not Associated with increased risk of endoscopy-refractory bleeding, rebleeding or mortality in patients with peptic ulcer bleeding

Laursen, S. B., Stanley, A., Leontiadis, G., Hallas, J. & Schaffalitzky de Muckadell, O. B., 2016, I : Gastroenterology. 150, 4 (S1), s. S164-S165 2 s., 791.

Publikation: Bidrag til tidsskriftKonferenceabstrakt i tidsskriftForskningpeer review

2014

Deviant Patterns of Methylphenidate Use in Adults: Displayed at NorPEN in Oslo, 2014

Pottegård, A., Rasmussen, L., Zoëga, H. & Hallas, J., 2014.

Publikation: Konferencebidrag uden forlag/tidsskriftPosterForskning

2011

Association between prescribing patterns of anti-asthmatic drugs and clinically uncontrolled asthma: a cross-sectional study

Davidsen, J. R., Hallas, J., Søndergaard, J., Christensen, R. D., Siersted, H. C., Plejdrup Hansen, M., Knudsen, T. B., Lykkegaard, J. & Andersen, M., 2011, I : Pulmonary pharmacology & therapeutics. 24, 6, s. 647-53 7 s.

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

Anti-Asthmatic Agents
Prescriptions
Cross-Sectional Studies
2016

Guidelines for good pharmacoepidemiology practice (GPP)

Public Policy Committee, International Society of Pharmacoepidemiology, 2016, I : Pharmacoepidemiology and Drug Safety. 25, 1, s. 2-10

Publikation: Bidrag til tidsskriftKommentar/debatForskningpeer review

2015

Cardiovascular drugs and erectile dysfunction - a symmetry analysis

Rasmussen, L., Hallas, J., Madsen, K. G. & Pottegård, A., 10. jun. 2015, I : British Journal of Clinical Pharmacology. 80, 5, s. 1219-1223

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

Prescriptions
Pharmaceutical Preparations
Numbers Needed To Treat
2012

Long-term use of antiplatelet drugs by stroke patients: a follow-up study based on prescription register data

Ostergaard, K., Hallas, J., Bak, S., Christensen, R. D. & Gaist, D., 2012, I : European Journal of Clinical Pharmacology. 68, 12, s. 1631-1637

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

Platelet Aggregation Inhibitors
Prescriptions
Dipyridamole
clopidogrel
Confidence Intervals
2015
Åben adgang
sociodemographic characteristics
Denmark
cross-sectional studies
health services
drug therapy
2014

Defining Hypotension in the Emergency Department and in the Pre-hospital Setting: A Hospital-based Cohort Study

Kristensen, A. K. B., Holler, J. G., Mikkelsen, S., Hallas, J. & Lassen, A. T., 2014, I : Scandinavian Journal of Trauma, Resuscitation and Emergency Medicine. 23, 1. Supplement, 1 s., A11.

Publikation: Bidrag til tidsskriftKonferenceabstrakt i tidsskriftForskningpeer review

2017

Sequence symmetry analysis in pharmacovigilance and pharmacoepidemiologic studies

Lai, E. C. C., Pratt, N., Hsieh, C. Y., Lin, S. J., Pottegård, A., Roughead, E. E., Kao Yang, Y. H. & Hallas, J., 2017, I : European Journal of Epidemiology. 32, 7, s. 567-582

Publikation: Bidrag til tidsskriftReviewForskningpeer review

Pharmacovigilance
Sequence Analysis
Pharmaceutical Preparations
Validation Studies
Drug-Related Side Effects and Adverse Reactions
2015

Use of acid-suppressive therapy before anti-reflux surgery in 2922 patients: a nationwide register-based study in Denmark

Lødrup, A., Pottegård, A., Hallas, J. & Bytzer, P., jul. 2015, I : Alimentary Pharmacology and Therapeutics. 42, 1, s. 84-90 7 s.

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

Denmark
Acids
Dichlorodiphenyldichloroethane
Prescriptions
Esophageal Diseases
2011

Identifying patients with myasthenia for epidemiological research by linkage of automated registers

Pedersen, E. G., Hallas, J., Hansen, K., Jensen, P. E. H. & Gaist, D., 2011, I : Neuroepidemiology. 37, 2, s. 120-8 9 s.

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

Epidemiologic Studies
Research
2012
112 Downloads (Pure)

Influence of Perfusion Defects on Survival after Coronary Revascularization

Simonsen, J. A., Gerke, O., Tamadoni, M., Rask, C. K., Thomassen, A., Hess, S., Johansen, A., Mickley, H., Jensen, L. O., Hallas, J. & Høilund-Carlsen, P. F., 2012, I : European Journal of Nuclear Medicine and Molecular Imaging. 39, Suppl 2, s. S180-S181

Publikation: Bidrag til tidsskriftKonferenceabstrakt i tidsskriftForskning

Åben adgang
Fil
2016

Statins and polyneuropathy revisited

Svendsen, T. D. K., Nørgaard Hansen, P., Rodríguez, L. A. G., Andersen, L., Hallas, J., Sindrup, S. H. & Gaist, D., 1. apr. 2016.

Publikation: Konferencebidrag uden forlag/tidsskriftPosterForskning

2013

Measures of “exposure needed for one additional patient to be harmed”

Hallas, J., Christensen, R. D., Stürmer, T. & Pottegård, A., 2013.

Publikation: Konferencebidrag uden forlag/tidsskriftPosterForskning

Children’s Relative Age in Class and Stimulant Drug Use for ADHD

Pottegård, A., Hallas, J., Hernández-Diaz, S. & Zoëga, H., 2013.

Publikation: Konferencebidrag uden forlag/tidsskriftPosterForskning

2016

Validity of the Prescriber Information in the Danish National Prescription Registry

Rasmussen, L., Valentin, J., Gesser, K. M., Hallas, J. & Pottegård, A., 2016, I : Basic & Clinical Pharmacology & Toxicology. 119, 4, s. 376-380

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

Prescriptions
Registries
Confidence Intervals
Pharmacies
Research Personnel
2019
44 Downloads (Pure)

A review of the Ghana National Health Insurance Scheme claims database: possibilities and limits for drug utilization research

Ankrah, D., Hallas, J., Odei, J., Asenso-Boadi, F., Dsane-Selby, L. & Donneyong, M., jan. 2019, I : Basic & Clinical Pharmacology & Toxicology. 124, 1, s. 18-27

Publikation: Bidrag til tidsskriftReviewForskningpeer review

Åben adgang
Fil
Health insurance
Drug Utilization
Ghana
National Health Programs
Databases

Baseline findings of the population-based, randomized, multifaceted Danish cardiovascular screening trial (DANCAVAS) of men aged 65-74 years

Lindholt, J. S., Rasmussen, L. M., Søgaard, R., Lambrechtsen, J., Steffensen, F. H., Frost, L., Egstrup, K., Urbonaviciene, G., Busk, M., Olsen, M. H., Hallas, J. & Diederichsen, A. C., jun. 2019, I : The British journal of surgery. 106, 7, s. 862-871

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

Population
Iliac Aneurysm
Thoracic Aortic Aneurysm
Abdominal Aortic Aneurysm
Hyperlipidemias
2018

Long-acting inhalation treatment and the risk of urinary tract infection textendash a symmetry analysis

Henriksen, D. P., Laursen, C. B., Sterndorf, J. W., Davidsen, J. R. & Hallas, J., 2018, I : European Respiratory Journal. 52, Suppl. 62, 1 s., PA2270.

Publikation: Bidrag til tidsskriftKonferenceabstrakt i tidsskriftForskningpeer review

2014

Myastenia and risk of cancer: a population-based case-control study

Pedersen, E. A., Pottegård, A., Hallas, J., Friis, S., Hansen, K., Jensen, P. E. H. & Gaist, D., 2014, I : European Journal of Neurology. 21, 5, s. 773-8

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

2017

Sidste kapitel om NSAID-bivirkninger er ikke skrevet endnu

Hallas, J., 2017, I : Ugeskrift for Laeger. 179, 4, s. 312

Publikation: Bidrag til tidsskriftLederForskning

2018

Reply to M. Nayan et al

Larsen, S. B., Dehlendorff, C., Skriver, C., Dalton, S. O., Jespersen, C. G., Borre, M., Brasso, K., Nørgaard, M., Johansen, C., Sørensen, H. T., Hallas, J. & Friis, S., 20. feb. 2018, I : Journal of Clinical Oncology. 36, 6, s. 629-630 2 s.

Publikation: Bidrag til tidsskriftKommentar/debatForskningpeer review

2017

Proton pump inhibitor use and cognitive decline: a follow-up study in middle-aged and elderly Danish twins

Wod, M., Hallas, J., Andersen, K., García-Rodríguez, L. A., Christensen, K. & Gaist, D., 15. nov. 2017.

Publikation: Konferencebidrag uden forlag/tidsskriftPosterForskning

2018

Disproportionality Analysis Used to Identify Patterns in Medication Error Reports Involving Hospitalized Children

Rishoej, R. M., Thybo Christesen, H., Juel Kjeldsen, L., Almarsdóttir, A. B. & Hallas, J., maj 2018, I : Basic & Clinical Pharmacology & Toxicology. 122, 5, s. 531-533

Publikation: Bidrag til tidsskriftLetterForskningpeer review

2012

Comorbidity in elderly cancer patients in relation to overall and cancer-specific mortality

Jørgensen, T. L., Hallas, J., Friis, S. & Herrstedt, J., 2012, I : B J C. 106, 7, s. 1353-60 8 s.

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

Comorbidity
Neoplasms
Population
2015
106 Downloads (Pure)

The effect of statins on average survival in randomised trials, an analysis of end point postponement

Kristensen, M. L., Christensen, P. M. & Hallas, J., sep. 2015, I : BMJ Open. 5, 9, s. e007118

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

Åben adgang
Fil
Hydroxymethylglutaryl-CoA Reductase Inhibitors
Primary Prevention
Life Expectancy
Placebos

Use of antibiotics in children: a danish nationwide drug utilization study

Pottegård, A., Broe, A., Aabenhus, R., Bjerrum, L., Hallas, J. & Damkier, P., 2015, I : Pediatric Infectious Disease Journal. 34, 2, s. e16-22

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

2017
102 Downloads (Pure)
Åben adgang
Fil
Registries
Coronary Artery Disease
Cause of Death
Perfusion
Outcome Assessment (Health Care)
2018
148 Downloads (Pure)

Risk of lactic acidosis in type 2 diabetes patients using metformin: A case control study

Aharaz, A., Pottegård, A., Henriksen, D. P., Hallas, J., Beck-Nielsen, H. & Lassen, A. T., 2018, I : PLOS ONE. 13, 5, 13 s., e0196122.

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

Åben adgang
Fil
metformin
Lactic Acidosis
Metformin
acidosis
Medical problems
2019

20 years of major and minor malformations in Danish Health Registries: A descriptive study

Damkier, P., Bliddal, M., Pottegård, A., Hallas, J. & Broe, A., 27. aug. 2019.

Publikation: Konferencebidrag uden forlag/tidsskriftPosterForskningpeer review

2018

Hypothesis-free screening of large administrative databases for unsuspected drug-outcome associations

Hallas, J., Wang, S. V., Gagne, J. J., Schneeweiss, S., Pratt, N. & Pottegård, A., 2018, I : European Journal of Epidemiology. 33, 6, s. 545–555

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

Pharmaceutical Databases
Pharmacovigilance
Denmark
Drug-Related Side Effects and Adverse Reactions
Causality
2019

Use of low-dose aspirin and mortality after prostate cancer diagnosis: A nationwide cohort study

Skriver, C., Dehlendorff, C., Borre, M., Brasso, K., Larsen, S. B., Dalton, S. O., Nørgaard, M., Pottegård, A., Hallas, J., Sørensen, H. T. & Friis, S., apr. 2019, I : Annals of Internal Medicine. 170, 7, s. 443-452

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

Prostatic Neoplasms
Cohort Studies
Prescriptions
Prostate
Denmark
2017

Reduced ability to work both before and after infectious spondylodiscitis in working-age patients

Kehrer, M., Hallas, J., Bælum, J., Jensen, T. G., Pedersen, C. & Lassen, A. T., 2017, I : Infectious Diseases. 49, 2, s. 95-103

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

Discitis
Return to Work
Population
Observation
Pensions
2012

Significance of age and comorbidity on treatment modality, treatment adherence, and prognosis in elderly ovarian cancer patients

Jørgensen, T. L., Teiblum, S., Paludan, M., Poulsen, L. Ø., Jørgensen, A. Y. S., Bruun, K. H., Hallas, J. & Herrstedt, J., 2012, I : Gynecologic Oncology. 127, 2, s. 367-374

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

Ovarian Neoplasms
Comorbidity
Survival Analysis
Cohort Studies
Retrospective Studies
2017
240 Downloads (Pure)

Association of Antithrombotic Drug Use With Subdural Hematoma Risk

Gaist, D., Rodríguez, L. A. G., Hellfritzsch, M., Poulsen, F. R., Halle, B., Hallas, J. & Pottegård, A., 28. feb. 2017, I : J A M A: The Journal of the American Medical Association. 317, 8, s. 836-846 11 s.

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

Åben adgang
Fil
clopidogrel
Pharmaceutical Preparations
Odds Ratio
Incidence
Population

External adjustment of unmeasured confounders in a case-control study of benzodiazepine use and cancer risk

Thygesen, L. C., Pottegård, A., Ersbøll, A. K., Friis, S., Stürmer, T. & Hallas, J., 2017, I : British Journal of Clinical Pharmacology. 83, 11, s. 2517–2527

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

Social Adjustment
Case-Control Studies
Propensity Score
Neoplasms
Population Control
2012

Long term use of drugs affecting the renin-angiotensin system and the risk of cancer: a population-based case-control study

Hallas, J., Christensen, R. D., Andersen, M., Friis, S. & Bjerrum, L., 2012, I : British Journal of Clinical Pharmacology. 74, 1, s. 180-8 9 s.

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

Angiotensin Receptor Antagonists
Renin-Angiotensin System
Meta-Analysis
Case-Control Studies
Pharmaceutical Preparations
2013

Hormone replacement therapy and risk of glioma: A nationwide nested case-control study

Andersen, L., Friis, S., Hallas, J., Ravn, P. & Gaist, D., 2013, I : Cancer Epidemiology. 37, 6, s. 876-880

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

Glioma
Case-Control Studies
Progestins
Estrogens
Population Control

Use of low-dose aspirin and non-aspirin nonsteroidal anti-inflammatory drugs and risk of glioma: a case-control study

Gaist, D., García-Rodríguez, L. A., Sørensen, H. T., Hallas, J. & Friis, S., 2013, I : B J C. 108, s. 1189–1194

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

Glioma
Case-Control Studies
Pharmaceutical Preparations
Odds Ratio
Confidence Intervals
2018

Treatment with montelukast and antidepressive medication—a symmetry analysis

Winkel, J. S., Damkier, P., Hallas, J. & Henriksen, D. P., dec. 2018, I : Pharmacoepidemiology and Drug Safety. 27, 12, s. 1409-1415

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

montelukast
Prescriptions
Leukotriene Antagonists
Pharmacovigilance
2011

Pharmaceutical interventions on prescription problems in a Danish pharmacy setting

Pottegård, A., Hallas, J. & Søndergaard, J., 2011, I : International Journal of Clinical Pharmacy. 33, 6, s. 1019-27 9 s.

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

Prescriptions
Pharmacists
Pharmaceutical Preparations
2014

How well do discharge diagnoses identify hospitalised patients with community-acquired infections? - a validation study

Henriksen, D. P., Nielsen, S. L., Laursen, C. B., Hallas, J., Pedersen, C. & Lassen, A. T., 2014, I : PLOS ONE. 9, 3, e92891.

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

Community-Acquired Infections
Validation Studies
Confidence Intervals
confidence interval
International Classification of Diseases
2013

Use of azathioprine for non-thymoma myasthenia and risk of cancer: a nationwide case-control study in Denmark

Pedersen, E. G., Pottegård, A., Hallas, J., Friis, S., Hansen, K., Jensen, P. E. H. & Gaist, D., 2013, I : European Journal of Neurology. 20, 6, s. 942-948

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

Denmark
Case-Control Studies
Neoplasms
Odds Ratio
Confidence Intervals
2015

Low use and adherence to maintenance medication in chronic obstructive pulmonary disease in the general population. Low use and adherence to medication in COPD

Sylvan Ingebrigtsen, T., Marott, J. L., Nordestgaard, B., Lange, P., Hallas, J., Dahl, M. & Vestbo, J., jan. 2015, I : Journal of General Internal Medicine. 30, 1, s. 51-59

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

2013

Short- and long-term mortality in patients with community-acquired severe sepsis and septic shock

Storgaard, M., Hallas, J., Gahrn-Hansen, B., Pedersen, S. S., Pedersen, C. & Lassen, A. T., 2013, I : Scandinavian Journal of Infectious Diseases. 45, 8, s. 577-583

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

Septic Shock
Confidence Intervals
Comorbidity
Population
Registries
2017
Denmark
Databases
Prescriptions
Drug Utilization
Pharmaceutical Preparations
2013

Increased risk of skin cancer in myasthenia patients treated with azathioprine: a nationwide case-control study in Denmark

Pedersen, E. G., Pottegård, A., Hallas, J., Hansen, K., Jensen, PEH. & Gaist, D., 2013.

Publikation: Konferencebidrag uden forlag/tidsskriftPosterForskning