Niels Keiding

Niels Keiding

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Niels Keiding

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Prevalent cohort studies and unobserved heterogeneity.

Lifetime Data Anal 2019 Jul 3. Epub 2019 Jul 3.

Section of Biostatistics, University of Copenhagen, Copenhagen, Denmark.

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http://dx.doi.org/10.1007/s10985-019-09479-9DOI Listing
July 2019

A Systematic Comparison of Designs to Study Human Fecundity.

Epidemiology 2019 01;30(1):120-129

Team of Environmental Epidemiology Applied to Reproduction and Respiratory Health, U1209, Inserm, CNRS and University Grenoble-Alpes Joint Research Center (IAB), Grenoble, France.

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http://Insights.ovid.com/crossref?an=00001648-900000000-9864
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http://dx.doi.org/10.1097/EDE.0000000000000916DOI Listing
January 2019

Relation Between Infant Microbiota and Autism?: Results from a National Cohort Sibling Design Study.

Epidemiology 2019 01;30(1):52-60

From the Department of Gynaecology and Obstetrics, Nordsjaellands Hospital, University of Copenhagen, Hillerød, Denmark.

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http://dx.doi.org/10.1097/EDE.0000000000000928DOI Listing
January 2019

Editorial to accompany the discussion paper 'Survival models and health sequences' by Walter Dempsey and Peter McCullagh.

Authors:
Niels Keiding

Lifetime Data Anal 2018 10 30;24(4):549. Epub 2018 Jun 30.

Section of Biostatistics, University of Copenhagen, P.O. Box 2099, 1014, Copenhagen, Denmark.

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http://dx.doi.org/10.1007/s10985-018-9442-7DOI Listing
October 2018

[The role of the Food and Drug Administration as times change].

Authors:
Niels Keiding

Ugeskr Laeger 2018 May;180(19)

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May 2018

Risk of Stroke With Various Types of Menopausal Hormone Therapies: A National Cohort Study.

Stroke 2017 08 16;48(8):2266-2269. Epub 2017 Jun 16.

From the Department of Gynecology and Obstetrics, Nordsjællands Hospital, University of Copenhagen, Hillerød, Denmark (E.L.); and Department of Public Health, Section of Biostatistics, University of Copenhagen, Denmark (L.H.N., N.K.).

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http://dx.doi.org/10.1161/STROKEAHA.117.017132DOI Listing
August 2017

Prelabor Cesarean Section and Risk of Childhood Type 1 Diabetes: A Nationwide Register-based Cohort Study.

Epidemiology 2016 07;27(4):547-55

From the aDepartment of Gynecology and Obstetrics, Nordsjællands Hospital, University of Copenhagen, Hillerød, Denmark; bSection of Biostatistics, Department of Public Health, University of Copenhagen, Copenhagen, Denmark; and cDepartment of Microbiology, Hvidovre Hospital, Copenhagen, Denmark.

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http://dx.doi.org/10.1097/EDE.0000000000000488DOI Listing
July 2016

The influence of hormone therapies on colon and rectal cancer.

Eur J Epidemiol 2016 05 12;31(5):481-9. Epub 2016 Jan 12.

Gynecological Clinic, The Juliane Marie Centre, Copenhagen University Hospital, Blegdamsvej 9, 2100, Copenhagen, Denmark.

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http://dx.doi.org/10.1007/s10654-016-0116-zDOI Listing
May 2016

Commentary: Fertility Behavior and Studies of Fecundity Trends.

Epidemiology 2016 May;27(3):459-61

From the Section of Biostatistics, University of Copenhagen, Copenhagen, Denmark.

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http://dx.doi.org/10.1097/EDE.0000000000000459DOI Listing
May 2016

The influence of hormone therapies on type I and II endometrial cancer: A nationwide cohort study.

Int J Cancer 2016 Mar 13;138(6):1506-15. Epub 2015 Oct 13.

The Juliane Marie Centre, Gynecological Clinic, Copenhagen University Hospital, Copenhagen, Denmark.

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http://dx.doi.org/10.1002/ijc.29878DOI Listing
March 2016

Treatment Recommendations for Patients With a Diagnosis of Ductal Carcinoma In Situ.

JAMA Oncol 2016 Mar;2(3):398

School of Life Sciences and Medicine, King's College, London, England.

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http://dx.doi.org/10.1001/jamaoncol.2015.4863DOI Listing
March 2016

The current duration design for estimating the time to pregnancy distribution: a nonparametric Bayesian perspective.

Lifetime Data Anal 2015 Oct 12;21(4):594-625. Epub 2015 Jun 12.

Department of Public Health, University of Copenhagen, Copenhagen, Denmark.

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http://dx.doi.org/10.1007/s10985-015-9333-0DOI Listing
October 2015

Risk of breast cancer in relation to combined effects of hormone therapy, body mass index, and alcohol use, by hormone-receptor status.

Epidemiology 2015 May;26(3):353-61

aSocial Medicine Section, Department of Public Health, University of Copenhagen, Denmark; bDanish Cancer Society Research Centre, Copenhagen, Denmark; cSection of Biostatistics, Department of Public Health, University of Copenhagen, Denmark; dDepartment of Public Health, The Novo Nordisk Foundation Center for Basic Metabolic Research, Faculty of Health and Medical Sciences, University of Copenhagen, Institute of Preventive Medicine, Bispebjerg and Frederiksberg Hospitals, The Capital Region, Frederiksberg, Denmark; eDepartment of Cardiology and The Copenhagen City Heart Study, Bispebjerg and Frederiksberg Hospitals, The Capital Region, Copenhagen, Denmark; fNational Research Centre for the Working Environment, Copenhagen, Denmark; gNational Institute of Public Health, University of Southern Denmark, Copenhagen, Denmark; and hDepartment of Clinical Biochemistry, Herlev Hospital, Copenhagen University Hospital, Herlev, Denmark.

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http://dx.doi.org/10.1097/EDE.0000000000000261DOI Listing
May 2015

Editorial: To the memory of John P. Klein.

Lifetime Data Anal 2015 Apr 7;21(2):157-9. Epub 2015 Feb 7.

University of Copenhagen, Copenhagen N, Denmark,

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http://dx.doi.org/10.1007/s10985-015-9320-5DOI Listing
April 2015

Commentary: time-to-pregnancy in the Real World.

Epidemiology 2015 Jan;26(1):119-21

From the aSection of Biostatistics, University of Copenhagen, Copenhagen, Denmark and bTeam of environmental epidemiology applied to reproduction and respiratory health, IAB (U823), Inserm and University Grenoble Alpes, Grenoble, France.

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http://dx.doi.org/10.1097/EDE.0000000000000215DOI Listing
January 2015

Cohort profile: the Social Inequality in Cancer (SIC) cohort study.

Int J Epidemiol 2014 Dec 17;43(6):1750-8. Epub 2014 Feb 17.

Department of Public Health, Section of Social Medicine, University of Copenhagen, Copenhagen, Denmark, Research Centre for Prevention and Health, Glostrup University Hospital, Glostrup, Denmark, Clinical Research Centre, Hvidovre University Hospital, Hvidovre, Denmark, Department of Cardiology, Bispebjerg University Hospital, Copenhagen, Denmark, Copenhagen City Heart Study, Frederiksberg University Hospital, Copenhagen, Denmark, Danish Cancer Society Research Centre, Copenhagen, Denmark and Department of Public Health, Section of Biostatistics, University of Copenhagen, Copenhagen, Denmark.

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http://dx.doi.org/10.1093/ije/dyu003DOI Listing
December 2014

Skin cancer as a marker of sun exposure: a case of serious immortality bias.

Int J Epidemiol 2014 Jun 2;43(3):971. Epub 2014 Jun 2.

Department of Biostatistics, Institute of Public Health, University of Copenhagen, Denmark.

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http://dx.doi.org/10.1093/ije/dyu100DOI Listing
June 2014

Nonparametric estimation in an "illness-death" model when all transition times are interval censored.

Biom J 2013 Nov 6;55(6):823-43. Epub 2013 Sep 6.

Stern School of Business, New York University, New York, NY, 10012, USA.

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http://dx.doi.org/10.1002/bimj.201200139DOI Listing
November 2013

Time trends in biological fertility in Western Europe.

Am J Epidemiol 2013 Sep 25;178(5):722-30. Epub 2013 Jul 25.

Department of Epidemiology and Biostatistics, Faculty of Medicine Building, School of Public Health, Norfolk Place, London, United Kingdom.

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http://dx.doi.org/10.1093/aje/kwt048DOI Listing
September 2013

A model for the distribution of daily number of births in obstetric clinics based on a descriptive retrospective study.

BMJ Open 2013 Aug 30;3(8):e002920. Epub 2013 Aug 30.

Department of Gynaecology and Obstetrics, Hillerød Hospital, Hillerød, Denmark.

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http://dx.doi.org/10.1136/bmjopen-2013-002920DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3758974PMC
August 2013

Same review quality in open versus blinded peer review in "Ugeskrift for Læger".

Dan Med J 2012 Aug;59(8):A4479

Gastroenterologisk Afdeling, Herlev Hospital, Herlev Ringvej 75, 2730 Herlev, Denmark.

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August 2012

Thrombotic stroke and myocardial infarction with hormonal contraception.

N Engl J Med 2012 Jun;366(24):2257-66

Gynecologic Clinic 4232, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark.

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http://dx.doi.org/10.1056/NEJMoa1111840DOI Listing
June 2012

Interpretability and importance of functionals in competing risks and multistate models.

Stat Med 2012 May 14;31(11-12):1074-88. Epub 2011 Nov 14.

Department of Biostatistics, University of Copenhagen, Copenhagen, Denmark.

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http://dx.doi.org/10.1002/sim.4385DOI Listing
May 2012

Estimating survival of dental fillings on the basis of interval-censored data and multi-state models.

Stat Med 2012 May 23;31(11-12):1139-49. Epub 2012 Feb 23.

INSERM, U-897, Bordeaux, F33076, France.

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http://dx.doi.org/10.1002/sim.4459DOI Listing
May 2012

The Simpson's paradox unraveled.

Int J Epidemiol 2011 Jun 30;40(3):780-5. Epub 2011 Mar 30.

Department of Epidemiology, Harvard School of Public Health, Harvard-MIT Division of Health Sciences and Technology, Boston, MA 02115, USA.

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http://dx.doi.org/10.1093/ije/dyr041DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3147074PMC
June 2011

Invited commentary: G-computation--lost in translation?

Am J Epidemiol 2011 Apr 16;173(7):739-42. Epub 2011 Mar 16.

Department of Applied Mathematics and Computer Science, Ghent University, Krijgslaan 281, Ghent, Belgium.

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http://dx.doi.org/10.1093/aje/kwq474DOI Listing
April 2011

Product-limit estimators of the gap time distribution of a renewal process under different sampling patterns.

Lifetime Data Anal 2010 Oct 23;16(4):571-9. Epub 2010 Mar 23.

Department of Mathematics, University of Leiden, Leiden, Netherlands.

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http://dx.doi.org/10.1007/s10985-010-9156-yDOI Listing
October 2010

Risk of mental disorders in family reunification migrants and native Danes: a register-based historically prospective cohort study.

Int J Public Health 2010 Oct 30;55(5):413-9. Epub 2010 Jun 30.

Danish Research Centre on Migration, Ethnicity and Health, Copenhagen, Denmark.

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http://dx.doi.org/10.1007/s00038-010-0162-3DOI Listing
October 2010

Reproducible research and the substantive context: response to comments.

Authors:
Niels Keiding

Biostatistics 2010 Jul 24;11(3):395-6. Epub 2010 May 24.

Department of Biostatistics, University of Copenhagen, Copenhagen, Denmark.

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http://dx.doi.org/10.1093/biostatistics/kxq034DOI Listing
July 2010

Reproducible research and the substantive context.

Authors:
Niels Keiding

Biostatistics 2010 Jul 24;11(3):376-8. Epub 2010 May 24.

Department of Biostatistics, University of Copenhagen, Copenhagen, Denmark.

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http://dx.doi.org/10.1093/biostatistics/kxq033DOI Listing
July 2010

Are low Danish fertility rates explained by changes in timing of births?

Scand J Public Health 2010 Jun 9;38(4):426-33. Epub 2010 Mar 9.

Department of Public Health, University of Copenhagen, Copenhagen, Denmark.

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http://dx.doi.org/10.1177/1403494810364682DOI Listing
June 2010

Why epidemiological and clinical intervention studies often give different or diverging results?

IUBMB Life 2009 Apr;61(4):391-3

Department of Clinical Pharmacology Q7642, Rigshospitalet, University Hospital Copenhagen, Copenhagen, Denmark.

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http://dx.doi.org/10.1002/iub.141DOI Listing
April 2009

Estimating the effect of current, previous and never use of drugs in studies based on prescription registries.

Pharmacoepidemiol Drug Saf 2009 Feb;18(2):147-53

Department of Biostatistics, Institute of Public Health, University of Copenhagen, Copenhagen, Denmark.

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http://dx.doi.org/10.1002/pds.1693DOI Listing
February 2009

Methodological issues in analyzing time trends in biologic fertility: protection bias.

Am J Epidemiol 2009 Feb 6;169(3):285-93. Epub 2009 Jan 6.

Department of Epidemiology and Public Health, Imperial College London, St Mary's Campus, Norfolk Place, London, UK.

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http://dx.doi.org/10.1093/aje/kwn302DOI Listing
February 2009

The Spanish flu in Denmark.

Scand J Infect Dis 2008 ;40(6-7):538-46

Institute of Public Health, Faculty of Health Sciences, University of Copenhagen, Denmark.

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http://dx.doi.org/10.1080/00365540701870903DOI Listing
September 2008

Effects of sample attrition in a longitudinal study of the association between alcohol intake and all-cause mortality.

Addiction 2008 Jul;103(7):1149-59

Centre for Alcohol Research, National Institute of Public Health, University of Southern Denmark, Denmark.

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http://dx.doi.org/10.1111/j.1360-0443.2008.02241.xDOI Listing
July 2008

Use of baseline and updated information on alcohol intake on risk for breast cancer: importance of latency.

Int J Epidemiol 2008 Jun 4;37(3):669-77. Epub 2008 Apr 4.

Centre for Alcohol Research, National Institute of Public Health, Øster Farimagsgade 5A, 2nd floor, DK-1399 Copenhagen K, Denmark.

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http://dx.doi.org/10.1093/ije/dyn060DOI Listing
June 2008

Differences in stage of disease between migrant women and native Danish women diagnosed with cancer: results from a population-based cohort study.

Eur J Cancer Prev 2008 Jun;17(3):185-90

Department of Health Services Research and Biostatistics, Institute of Public Health, University of Copenhagen, Copenhagen, Denmark.

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http://dx.doi.org/10.1097/CEJ.0b013e3282f0bfd1DOI Listing
June 2008

Changes in alcohol intake and risk of upper digestive tract cancer.

Acta Oncol 2007 ;46(8):1085-9

Centre for Alcohol Research, National Institute of Public Health, Copenhagen, Denmark.

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http://dx.doi.org/10.1080/02841860701441806DOI Listing
April 2008

Using prescription registries to define continuous drug use: how to fill gaps between prescriptions.

Pharmacoepidemiol Drug Saf 2008 Apr;17(4):384-8

Department of Biostatistics, Institute of Public Health, University of Copenhagen, Denmark.

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http://dx.doi.org/10.1002/pds.1549DOI Listing
April 2008

Time trends in human fecundability in Sweden.

Epidemiology 2008 Mar;19(2):191-6

Department of Biostatistics, University of Copenhagen, Denmark.

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http://dx.doi.org/10.1097/EDE.0b013e31816334adDOI Listing
March 2008

The measurement of change in functional ability: dealing with attrition and the floor/ceiling effect.

Arch Gerontol Geriatr 2006 Nov-Dec;43(3):337-50. Epub 2006 Feb 15.

University of Copenhagen, Institute of Public Health, Department of Social Medicine, Blegdamsvej 3, 2200 Copenhagen N, Denmark.

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http://dx.doi.org/10.1016/j.archger.2005.12.004DOI Listing
January 2007

Confounder selection in environmental epidemiology: assessment of health effects of prenatal mercury exposure.

Ann Epidemiol 2007 Jan 5;17(1):27-35. Epub 2006 Oct 5.

Department of Biostatistics, University of Copenhagen, and Faroese Hospital System, Tórshavn, Faroe Islands.

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http://dx.doi.org/10.1016/j.annepidem.2006.05.007DOI Listing
January 2007

Causes of death behind low life expectancy of Danish women.

Scand J Public Health 2006 ;34(4):432-6

Institute of Public Health, University of Copenhagen, Denmark.

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http://dx.doi.org/10.1080/14034940500489842DOI Listing
August 2006

Event history analysis and the cross-section.

Authors:
Niels Keiding

Stat Med 2006 Jul;25(14):2343-64

Department of Biostatistics, University of Copenhagen, Øster Farimagsgade 5, entr. B, P.O.B. 2099, DK-1014 Copenhagen K, Denmark.

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http://dx.doi.org/10.1002/sim.2579DOI Listing
July 2006

Feasibility of the current-duration approach to studying human fecundity.

Epidemiology 2006 Jul;17(4):440-9

Inserm, National Institute of Health and Medical Research, U569, IFR 69, Le Kremlin-Bicêtre, France.

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http://dx.doi.org/10.1097/01.ede.0000221781.15114.88DOI Listing
July 2006

Design and analysis of time-to-pregnancy.

Stat Methods Med Res 2006 Apr;15(2):127-40

Department of Biostatistics, University of Copenhagen, Oster Farimagsgade 5, entr. B, PO Box 2099, DK-1014 Copenhagen K, Denmark.

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http://dx.doi.org/10.1191/0962280206sm435oaDOI Listing
April 2006

Human fertility decline?

Epidemiology 2006 Mar;17(2):238; author reply 238-9

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http://dx.doi.org/10.1097/01.ede.0000199518.37404.6cDOI Listing
March 2006

Breast cancer incidence, case-fatality and breast cancer mortality in Danish women using hormone replacement therapy--a prospective observational study.

Int J Epidemiol 2005 Aug 24;34(4):931-5. Epub 2005 May 24.

Department of Gynaecology, Juliane Marie Centre, H:S Rigshospitalet, University of Copenhagen, Copenhagen, Denmark.

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http://dx.doi.org/10.1093/ije/dyi103DOI Listing
August 2005

Studying time to pregnancy by use of a retrospective design.

Am J Epidemiol 2005 Jul 22;162(2):115-24. Epub 2005 Jun 22.

Department of Epidemiology and Public Health, School of Medicine, Imperial College, London, United Kingdom.

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http://dx.doi.org/10.1093/aje/kwi172DOI Listing
July 2005

[Effect of mammography screening for breast cancer].

Ugeskr Laeger 2005 Apr;167(16):1772-3

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April 2005

[Prediction of individual residual survival times using statistical models].

Ugeskr Laeger 2005 Mar;167(10):1174-7

Lancaster University, Mathematics and Statistics, Storbritannien.

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March 2005

Effects of exposure imprecision on estimation of the benchmark dose.

Risk Anal 2004 Dec;24(6):1689-96

Department of Biostatistics, University of Copenhagen, Denmark.

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http://dx.doi.org/10.1111/j.0272-4332.2004.00560.xDOI Listing
December 2004

Explained variation and predictive accuracy in general parametric statistical models: the role of model misspecification.

Lifetime Data Anal 2004 Dec;10(4):461-72

Department of Biostatistics, University of Copenhagen, Blegdamsvej 3, DK-2200 Copenhagen N, Denmark.

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December 2004

Studying human fertility and environmental exposures.

Environ Health Perspect 2004 Aug;112(11):A604; author reply A605-6

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1247502PMC
http://dx.doi.org/10.1289/ehp.112-1247502DOI Listing
August 2004

Underestimation of risk due to exposure misclassification.

Int J Occup Med Environ Health 2004 ;17(1):131-6

Institute of Public Health, University of Southern Denmark, Odense, Denmark.

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July 2004

The Precautionary Principle and statistical approaches to uncertainty.

Int J Occup Med Environ Health 2004 ;17(1):147-51

Department of Biostatistics, Institute of Public Health, University of Copenhagen, Copenhagen, Denmark.

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July 2004

Association between mercury concentrations in blood and hair in methylmercury-exposed subjects at different ages.

Environ Res 2004 Jul;95(3):385-93

Institute of Clinical Research, Odense University Hospital, DK-5000 Odense, Denmark.

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http://dx.doi.org/10.1016/j.envres.2003.11.001DOI Listing
July 2004

How would a decline in sperm concentration over time influence the probability of pregnancy?

Epidemiology 2004 Jul;15(4):458-65

Unité 569 "Epidémiologie, Démographie et Sciences Sociales," INSERM and INED (the French National Institute for Demographic Studies), IFR69, 82 rue du Général Leclerc, 94276 Le Kremlin-Bicêtre CEDEX, France.

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http://dx.doi.org/10.1097/01.ede.0000129520.84568.87DOI Listing
July 2004

Women's death in Scandinavia--what makes Denmark different?

Eur J Epidemiol 2004 ;19(2):117-21

Institute of Public Health, University of Copenhagen, Blegdamsvej, Denmark.

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http://dx.doi.org/10.1023/b:ejep.0000017834.35943.bdDOI Listing
June 2004

Structured home visits to older people. Are they only of benefit for women? A randomised controlled trial.

Scand J Prim Health Care 2004 Jun;22(2):106-11

Department of General Practice and Central Research Unit for General Practice, Institute of Public Health, University of Copenhagen, Denmark.

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http://dx.doi.org/10.1080/02813430410005829DOI Listing
June 2004

Emergency room utilization in Copenhagen: a comparison of immigrant groups and Danish-born residents.

Scand J Public Health 2004 ;32(1):53-9

Department of Health Services Research, Institute of Public Health, University of Copenhagen Denmark.

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http://dx.doi.org/10.1080/14034940310001659DOI Listing
May 2004

[Relation between postmenopausal hormone replacement therapy and ischemic heart based on a Danish prospective cohort study].

Ugeskr Laeger 2004 May;166(20):1892-4

H:S Hvidovre Hospital, Gynaekologisk-obstetrisk Afdeling, Institut for Sygdomsforebyggelse, Center for fedmeforskning, Københavns Universitet.

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May 2004

A changing relationship between disability and survival in the elderly population: differences by age.

J Clin Epidemiol 2003 Dec;56(12):1192-201

Health Services Research Unit, Institut Municipal d'Investigació Mèdica (IMIM-IMAS), Carrer del Doctor Aiguader 80, E-08003, Barcelona, Spain.

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http://dx.doi.org/10.1016/s0895-4356(03)00201-4DOI Listing
December 2003

Consequences of exposure measurement error for confounder identification in environmental epidemiology.

Stat Med 2003 Oct;22(19):3089-100

Department of Biostatistics, University of Copenhagen, Blegdamsvej 3, DK-2200 Copenhagen N, Denmark.

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http://dx.doi.org/10.1002/sim.1541DOI Listing
October 2003

Prenatal methylmercury exposure in the Seychelles.

Lancet 2003 Aug;362(9384):664-5; author reply 665

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http://dx.doi.org/10.1016/S0140-6736(03)14166-9DOI Listing
August 2003

Depression as a prognostic factor for breast cancer mortality.

Psychosomatics 2003 Jan-Feb;44(1):24-30

Center of Preventive Medicine, Glostrup University Hospital, Glostrup, Denmark.

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http://dx.doi.org/10.1176/appi.psy.44.1.24DOI Listing
February 2003

[Environmental epidemiology research leads to a decrease of the exposure limit for mercury].

Ugeskr Laeger 2003 Jan;165(2):107-11

Faerøernes Sygehusvaesen, afdeling for arbejdsmedicin og folkesundhed, Syddansk Universitet, Institut for sundhedstjenesteforskning, og Københavns Universitet, Institut for Folkesundhedsvidenskab, Biostatistisk afdeling.

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January 2003

Preventive home visits to older people in Denmark: methodology of a randomized controlled study.

Aging Clin Exp Res 2002 Dec;14(6):509-15

Department of General Practice, Institute of Public Health, University of Copenhagen, Copenhagen, Denmark.

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December 2002

Estimating time to pregnancy from current durations in a cross-sectional sample.

Biostatistics 2002 Dec;3(4):565-78

Department of Biostatistics, University of Copenhagen, Blegdamsvej 3, DK-2200, Copenhagen N, Denmark.

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http://dx.doi.org/10.1093/biostatistics/3.4.565DOI Listing
December 2002

Effect of ethnic background on Danish hospital utilisation patterns.

Soc Sci Med 2002 Oct;55(7):1207-11

Department of Health Services Research, Institute of Public Health, University of Copenhagen, Denmark.

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http://dx.doi.org/10.1016/s0277-9536(01)00245-3DOI Listing
October 2002

Estimation of health effects of prenatal methylmercury exposure using structural equation models.

Environ Health 2002 Oct 14;1(1). Epub 2002 Oct 14.

Department of Biostatistics, University of Copenhagen, Blegdamsvej 3, DK-2200 Copenhagen, Denmark.

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC149391PMC
October 2002

Poor semen quality may contribute to recent decline in fertility rates.

Hum Reprod 2002 Jun;17(6):1437-40

Department of Growth and Reproduction, Rigshospitalet, The Juliane Marie Centre, section GR-5064, Blegdamsvej 9, DK-2100 Copenhagen, Denmark.

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http://dx.doi.org/10.1093/humrep/17.6.1437DOI Listing
June 2002

Multi-state models for event history analysis.

Stat Methods Med Res 2002 Apr;11(2):91-115

Department of Biostatistics, University of Copenhagen, Danish Epidemiology Science Centre, Copenhagen, Denmark.

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http://dx.doi.org/10.1191/0962280202SM276raDOI Listing
April 2002