Vera Ehrenstein

Summary

Affiliation: Aarhus University Hospital
Country: Denmark

Publications

  1. pmc Existing data sources for clinical epidemiology: Aarhus University Prescription Database
    Vera Ehrenstein
    Department of Clinical Epidemiology, Aarhus University Hospital, Denmark
    Clin Epidemiol 2:273-9. 2010
  2. pmc Medical databases in studies of drug teratogenicity: methodological issues
    Vera Ehrenstein
    Department of Clinical Epidemiology, Aarhus University Hospital, Aarhus, Denmark
    Clin Epidemiol 2:37-43. 2010
  3. pmc Association of Apgar scores with death and neurologic disability
    Vera Ehrenstein
    Department of Clinical Epidemiology, Aarhus University Hospital, Denmark
    Clin Epidemiol 1:45-53. 2009
  4. pmc Association of Apgar score at five minutes with long-term neurologic disability and cognitive function in a prevalence study of Danish conscripts
    Vera Ehrenstein
    Department of Clinical Epidemiology, Aarhus University Hospital, Science Centre Skejby, Olof Palmes Alle 43 45, 8200 Aarhus N, Denmark
    BMC Pregnancy Childbirth 9:14. 2009
  5. doi request reprint Pregnancy-associated hypertensive disorders and adult cognitive function among Danish conscripts
    Vera Ehrenstein
    Department of Clinical Epidemiology, Aarhus University Hospital, Aarhus N, Denmark
    Am J Epidemiol 170:1025-31. 2009
  6. doi request reprint Febrile seizures and cognitive function in young adult life: a prevalence study in Danish conscripts
    Mette Nørgaard
    Department of Clinical Epidemiology, Aarhus University Hospital, Aarhus, Denmark
    J Pediatr 155:404-9. 2009
  7. doi request reprint Evaluation of an ICD-10 algorithm to detect osteonecrosis of the jaw among cancer patients in the Danish National Registry of Patients
    Vera Ehrenstein
    Department of Clinical Epidemiology, Aarhus University Hospital, Aarhus, Denmark
    Pharmacoepidemiol Drug Saf 24:693-700. 2015
  8. doi request reprint Use of glucocorticoids and risk of venous thromboembolism: a nationwide population-based case-control study
    Sigrun A Johannesdottir
    Department of Clinical Epidemiology, Institute of Clinical Medicine, Aarhus University Hospital, Aarhus N, The Netherlands
    JAMA Intern Med 173:743-52. 2013
  9. doi request reprint Neonatal non-hemolytic hyperbilirubinemia: a prevalence study of adult neuropsychiatric disability and cognitive function in 463 male Danish conscripts
    Finn Ebbesen
    Department of Pediatrics, Aalborg Hospital, Aarhus University Hospital, Aalborg, Denmark
    Arch Dis Child 95:583-7. 2010
  10. doi request reprint Prostate cancer, comorbidity, and the risk of venous thromboembolism: A cohort study of 44,035 Danish prostate cancer patients, 1995-2011
    Anne G Ording
    Department of Clinical Epidemiology, Aarhus University Hospital, Aarhus, Denmark
    Cancer 121:3692-9. 2015

Collaborators

Detail Information

Publications30

  1. pmc Existing data sources for clinical epidemiology: Aarhus University Prescription Database
    Vera Ehrenstein
    Department of Clinical Epidemiology, Aarhus University Hospital, Denmark
    Clin Epidemiol 2:273-9. 2010
    ..The linked data have many applications in clinical epidemiology, including drug utilization studies, safety monitoring, etiologic research, and validation studies...
  2. pmc Medical databases in studies of drug teratogenicity: methodological issues
    Vera Ehrenstein
    Department of Clinical Epidemiology, Aarhus University Hospital, Aarhus, Denmark
    Clin Epidemiol 2:37-43. 2010
    ..Provided that methodological problems are understood and effectively handled, computerized medical databases are a valuable source of data for studies of teratogenicity of drugs...
  3. pmc Association of Apgar scores with death and neurologic disability
    Vera Ehrenstein
    Department of Clinical Epidemiology, Aarhus University Hospital, Denmark
    Clin Epidemiol 1:45-53. 2009
    ..The low magnitude of absolute risks makes Apgar score a poor clinical predictor of long-term outcome. Nevertheless, the observed associations point to the importance of fetal and perinatal periods for neurodevelopment...
  4. pmc Association of Apgar score at five minutes with long-term neurologic disability and cognitive function in a prevalence study of Danish conscripts
    Vera Ehrenstein
    Department of Clinical Epidemiology, Aarhus University Hospital, Science Centre Skejby, Olof Palmes Alle 43 45, 8200 Aarhus N, Denmark
    BMC Pregnancy Childbirth 9:14. 2009
    ..We aimed to examine the association of five-minute Apgar score with prevalence of neurologic disability and with cognitive function in early adulthood...
  5. doi request reprint Pregnancy-associated hypertensive disorders and adult cognitive function among Danish conscripts
    Vera Ehrenstein
    Department of Clinical Epidemiology, Aarhus University Hospital, Aarhus N, Denmark
    Am J Epidemiol 170:1025-31. 2009
    ..0 (95% CI: -4.0, 0.0), -3.2 (95% CI: -4.7, -1.8), and -2.0 (95% CI: -7.2, 3.2). In this study, prenatal exposure to gestational hypertensive disorders was associated with slightly reduced adult cognitive performance among male conscripts...
  6. doi request reprint Febrile seizures and cognitive function in young adult life: a prevalence study in Danish conscripts
    Mette Nørgaard
    Department of Clinical Epidemiology, Aarhus University Hospital, Aarhus, Denmark
    J Pediatr 155:404-9. 2009
    ..To examine the association between febrile seizures and cognitive performance in early adulthood...
  7. doi request reprint Evaluation of an ICD-10 algorithm to detect osteonecrosis of the jaw among cancer patients in the Danish National Registry of Patients
    Vera Ehrenstein
    Department of Clinical Epidemiology, Aarhus University Hospital, Aarhus, Denmark
    Pharmacoepidemiol Drug Saf 24:693-700. 2015
    ....
  8. doi request reprint Use of glucocorticoids and risk of venous thromboembolism: a nationwide population-based case-control study
    Sigrun A Johannesdottir
    Department of Clinical Epidemiology, Institute of Clinical Medicine, Aarhus University Hospital, Aarhus N, The Netherlands
    JAMA Intern Med 173:743-52. 2013
    ..Because the prevalence of glucocorticoid use and the incidence of VTE are high, an increased risk of VTE associated with glucocorticoid use would have important implications...
  9. doi request reprint Neonatal non-hemolytic hyperbilirubinemia: a prevalence study of adult neuropsychiatric disability and cognitive function in 463 male Danish conscripts
    Finn Ebbesen
    Department of Pediatrics, Aalborg Hospital, Aarhus University Hospital, Aalborg, Denmark
    Arch Dis Child 95:583-7. 2010
    ..To examine whether neonatal non-hemolytic hyperbilirubinemia is associated with adult neuropsychiatric disability and cognitive function...
  10. doi request reprint Prostate cancer, comorbidity, and the risk of venous thromboembolism: A cohort study of 44,035 Danish prostate cancer patients, 1995-2011
    Anne G Ording
    Department of Clinical Epidemiology, Aarhus University Hospital, Aarhus, Denmark
    Cancer 121:3692-9. 2015
    ..It is unknown whether comorbidity interacts clinically with prostate cancer (PC) to increase the VTE rate beyond that explained by PC and comorbidity alone, for example, by delaying diagnosis or precluding treatment...
  11. pmc Associations between stress disorders and cardiovascular disease events in the Danish population
    Jaimie L Gradus
    National Center for PTSD, VA Boston Healthcare System, Boston, Massachusetts, USA Departments of Psychiatry and Epidemiology, Boston University, Boston, Massachusetts, USA Department of Clinical Epidemiology, Aarhus University Hospital, Aarhus, Denmark
    BMJ Open 5:e009334. 2015
    ..The aim of this study was to examine the overall and gender-stratified associations between PTSD and adjustment disorder and 4 CVD events...
  12. doi request reprint Use of corticosteroids in early pregnancy is not associated with risk of oral clefts and other congenital malformations in offspring
    Anne Mette Bay Bjørn
    1Department of Clinical Epidemiology, Aarhus University Hospital, Aarhus, Denmark and 2Department of Epidemiology, Institute of Public Health, University of Aarhus, Aarhus, Denmark
    Am J Ther 21:73-80. 2014
    ..5-9.6). For oral clefts, the ORs ranged from 0.6 (95% CI, 0.2-1.7) to 5.2 (95% CI, 1.5-17.1). We found no evidence of an association between use of corticosteroids in early pregnancy and risk of congenital malformations in offspring. ..
  13. doi request reprint Use of inhaled and oral corticosteroids in pregnancy and the risk of malformations or miscarriage
    Anne Mette Bay Bjørn
    Department of Gynecology and Obstetrics, Aarhus University Hospital Skejby, Aarhus N, Denmark
    Basic Clin Pharmacol Toxicol 116:308-14. 2015
    ..The use of inhaled corticosteroids was associated with a slightly increased risk of miscarriage, whereas the use of oral corticosteroids was not; however, confounding by indication could not be ruled out. ..
  14. doi request reprint Positive predictive value of primary inpatient discharge diagnoses of infection among cancer patients in the Danish National Registry of Patients
    Louise Holland-Bill
    Department of Clinical Epidemiology, Aarhus University Hospital, Aarhus, Denmark Electronic address
    Ann Epidemiol 24:593-7, 597.e1-18. 2014
    ..We therefore estimated the positive predictive value (PPV) of primary inpatient diagnosis of infection among cancer patients in the Danish National Registry of Patients (DNRP)...
  15. pmc Weight at birth and subsequent fecundability: a prospective cohort study
    Cathrine Wildenschild
    Department of Clinical Epidemiology, Aarhus University Hospital, Aarhus, Denmark
    PLoS ONE 9:e95257. 2014
    ..To examine the association between a woman's birth weight and her subsequent fecundability...
  16. pmc Existing data sources for clinical epidemiology: The Danish National Database of Reimbursed Prescriptions
    Sigrun Alba Johannesdottir
    Department of Clinical Epidemiology, Institute of Clinical Medicine, Aarhus University Hospital, Aarhus, Denmark
    Clin Epidemiol 4:303-13. 2012
    ..The DNDRP thus is a valuable data source for pharmacoepidemiological research...
  17. pmc Maternal use of antibiotics, hospitalisation for infection during pregnancy, and risk of childhood epilepsy: a population-based cohort study
    Mette Nørgaard
    Department of Clinical Epidemiology, Institute of Clinical Medicine, Aarhus University Hospital, Aarhus, Denmark
    PLoS ONE 7:e30850. 2012
    ..Maternal infection during pregnancy may be a risk factor for epilepsy in offspring. Use of antibiotics is a valid marker of infection...
  18. doi request reprint Hospital-Diagnosed Pertussis Infection in Children and Long-term Risk of Epilepsy
    Morten Olsen
    Department of Clinical Epidemiology, Aarhus University Hospital, Aarhus N, Denmark
    JAMA 314:1844-9. 2015
    ..Pertussis is associated with encephalopathy and seizures in infants. However, the risk of childhood epilepsy following pertussis is unknown...
  19. pmc Positive predictive values of the coding for bisphosphonate therapy among cancer patients in the Danish National Patient Registry
    Malene Schou Nielsson
    Department of Clinical Epidemiology, Aarhus University Hospital, Aarhus, Denmark
    Clin Epidemiol 4:233-6. 2012
    ..The purpose of this study was to estimate the positive predictive value (PPV) of the coding for bisphosphonate treatment in selected cancer patients from the Danish National Patient Registry (DNPR)...
  20. doi request reprint Positive predictive value of the International Classification of Diseases, 10th revision, codes to identify osteonecrosis of the jaw in patients with cancer
    Henrik Gammelager
    Department of Clinical Epidemiology, Aarhus University Hospital, Aarhus, Denmark
    Cancer Epidemiol 36:381-3. 2012
    ..The International Classification of Diseases, 10th revision (ICD-10), currently used in Denmark, does not have a specific code for ONJ, making it difficult to monitor its occurrence...
  21. doi request reprint Hospitalizations for opioid poisoning: a nation-wide population-based study in Denmark, 1998-2004
    Anne Mette Bay Bjørn
    Department of Clinical Epidemiology, Aarhus University Hospital, Aarhus N, Denmark
    Addiction 104:104-8. 2009
    ..To assess hospitalization rates (HR) for poisoning with heroin, methadone or strong analgesics and relate them to quantities of prescribed methadone and strong analgesics in Denmark between 1998 and 2004...
  22. pmc Use of prescribed drugs among primiparous women: an 11-year population-based study in Denmark
    Anne Mette Bay Bjørn
    Department of Clinical Epidemiology, Aarhus University Hospital
    Clin Epidemiol 3:149-56. 2011
    ..To describe patterns of prescribed drug use over time among primiparous women in Denmark...
  23. pmc Metformin initiation and renal impairment: a cohort study in Denmark and the UK
    Christian Fynbo Christiansen
    Department of Clinical Epidemiology, Aarhus University Hospital, Aarhus N, Denmark
    BMJ Open 5:e008531. 2015
    ..To estimate prevalence of renal impairment, rate of decline in kidney function and changes in metformin use after decline in kidney function, in metformin initiators...
  24. doi request reprint Survival and PSA-markers for mortality and metastasis in nonmetastatic prostate cancer treated with androgen deprivation therapy
    Mary Nguyen-Nielsen
    Department of Clinical Epidemiology, Aarhus University Hospital, Olof Palmes Alle 43 45, 8200 Aarhus N, Denmark Electronic address
    Cancer Epidemiol 39:623-32. 2015
    ..We estimated the incidence of these outcomes among M0-PC patients on ADT and identified prostate-specific antigen (PSA) based biomarkers for mortality and metastasis...
  25. doi request reprint Body mass index and cognitive function: birth cohort effects in young men
    Vera Ehrenstein
    Department of Clinical Epidemiology, Aarhus University Hospital, Aarhus, Denmark
    Obesity (Silver Spring) 23:931-4. 2015
    ..Body mass index (BMI) and intelligence quotient (IQ) are associated. We examined whether this association varied by birth cohort...
  26. doi request reprint Bone metastases, skeletal-related events, and survival among children with cancer in Denmark
    Rohini K Hernandez
    Center for Observational Research, Amgen Inc, Thousand Oaks, CA Department of Clinical Epidemiology, Aarhus University Hospital, Aarhus N, Denmark
    J Pediatr Hematol Oncol 36:528-33. 2014
    ..1 years, yielding an IR of 590 per 1000 person-years (95% CI, 381-915). Bone metastases are rare among children with cancer, but SREs are a common consequence. ..
  27. doi request reprint Caesarean section and body mass index among Danish men
    Elisabeth Svensson
    Department of Clinical Epidemiology, Aarhus University, Aarhus, Denmark
    Obesity (Silver Spring) 21:429-33. 2013
    ..We conducted a prevalence study to examine the association between Caesarean section and body mass index (BMI) in 21,051 adult Danish men born in 1977-1983 who presented for mandatory conscription evaluation around age 18 years...
  28. pmc Correspondence between general practitionerreported medication use and timing of prescription dispensation
    Sigrun Alba Johannesdottir
    Department of Clinical Epidemiology, Institute of Clinical Medicine, Aarhus University Hospital, Aarhus, Denmark
    Clin Epidemiol 4:13-8. 2012
    ..55 for ACE-inhibitors to 1.00 for oral glucose-lowering agents. The correspondence was greater when analyzed within therapeutic groups than when analyzed for exact medications within these groups...
  29. pmc Validity of asthma diagnoses in the Danish National Registry of Patients, including an assessment of impact of misclassification on risk estimates in an actual dataset
    Annette Østergaard Jensen
    Department of Clinical Epidemiology, Aarhus University Hospital, Aarhus, Denmark
    Clin Epidemiol 2:67-72. 2010
    ..We quantified this misclassification and examined its impact on the results of an epidemiologic study on asthma...