Kathrin Wolf,
Sophia Rodopoulou,
Jie Chen,
Zorana J. Andersen,
Richard W. Atkinson,
Mariska Bauwelinck
m.fl.:
Comparison of traditional Cox regression and causal modeling to investigate the association between long-term air pollution exposure and natural-cause mortality within European cohorts
Environmental Pollution (1987) 2023
DOI
Jie Chen,
Danielle Braun,
Tanya Christidis,
Michael Cork,
Sophia Rodopoulou,
Evangelia Samoli
m.fl.:
Long-Term Exposure to Low-Level PM2.5 and Mortality: Investigation of Heterogeneity by Harmonizing Analyses in Large Cohort Studies in Canada, United States, and Europe
Environmental Health Perspectives 2023
ARKIV /
DOI
Massimo Stafoggia,
Bente Margaret Oftedal,
Jie Chen,
Sophia Rodopoulou,
Matteo Renzi,
Richard W. Atkinson
m.fl.:
Long-term exposure to low ambient air pollution concentrations and mortality among 28 million people: results from seven large European cohorts within the ELAPSE project
The Lancet Planetary Health 2022
ARKIV /
DOI
Karin Magnusson,
Katrine Damgaard Skyrud,
Pål Suren,
Margrethe Greve-Isdahl,
Ketil Størdal,
Doris Tove Kristoffersen
m.fl.:
Healthcare use in 700 000 children and adolescents for six months after covid-19: before and after register based cohort study
Jon Helgeland,
Doris Tove Kristoffersen,
Katrine Damgaard Skyrud
:
Does a Code for Acute Myocardial Infarction Mean the Same in All Norwegian Hospitals? A Likelihood Approach to a Medical Record Review
Karin Magnusson,
Doris Tove Kristoffersen,
Andrea Dell’Isola,
Ali Kiadaliri,
Aleksandra Turkiewicz,
Jos Runhaar
m.fl.:
Post-covid medical complaints following infection with SARS-CoV-2 Omicron vs Delta variants
Hanna Eikås Klem,
Tuva Sofie Tveiten,
Sigrid Beitland,
Stine Malerød,
Doris Tove Kristoffersen,
Terese Dalsnes
m.fl.:
Tidlig aktivitet hos respiratorpasienter – en metaanalyse
Tidsskrift for Den norske legeforening 2021
ARKIV /
DOI
Evangelia Samoli,
Sophia P. Rodopoulou,
Ulla A. Hvidtfeldt,
Kathrin Wolf,
Massimo Stafoggia,
Bert Brunekreef
m.fl.:
Modeling multi-level survival data in multi-center epidemiological cohort studies: Applications from the ELAPSE project
Environment International 2021
ARKIV /
DOI
Shuo Liu,
Jeanette Therming Jørgensen,
Petter Ljungman,
Göran Pershagen,
Tom Bellander,
Karin Leander
m.fl.:
Long-term exposure to low-level air pollution and incidence of asthma: The ELAPSE project
European Respiratory Journal 2021
DOI
Katrine Damgaard Skyrud,
Doris Tove Kristoffersen,
Jon Helgeland
:
30 dagers overlevelse og reinnleggelse etter sykehusinnleggelse. Resultater for 2019
Folkehelseinstituttet 2020
ARKIV
Shuo Liu,
Jeanette Therming Jørgensen,
Petter Ljungman,
Göran Pershagen,
Tom Bellander,
Karin Leander
m.fl.:
Long-term exposure to lowlevel air pollution and incidence of asthma: the ELAPSE project
European Respiratory Journal 2020
DOI
Jon Helgeland,
Oliver Tomic,
Tonya Moen Hansen,
Doris Tove Kristoffersen,
Sahar Hassani,
Anne Karin Lindahl
:
Postoperative wound dehiscence after laparotomy: a useful healthcare quality indicator? A cohort study based on Norwegian hospital administrative data
Charlotte Christine Gibbs,
Jacob Thalamus,
Doris Tove Kristoffersen,
Martin Veel Svendsen,
Øystein Lunde Holla,
Kristian Heldal
m.fl.:
QT prolongation predicts short-term mortality independent of comorbidity
Katrine Damgaard Skyrud,
Eirik Vikum,
Tonya Moen Hansen,
Doris Tove Kristoffersen,
Jon Helgeland
:
Hospital Variation in 30‐Day Mortality for Patients With Stroke; The Impact of Individual and Municipal Socio‐Demographic Status
Journal of the American Heart Association (JAHA) 2019
ARKIV /
DOI
Doris Tove Kristoffersen,
Jon Helgeland,
Jocelyne Clench-Aas,
Petter Laake,
Marit Bragelien Veierød
:
Observed to expected or logistic regression to identify hospitals with high or low 30-day mortality?
Daniel Semakula,
Allen Nsangi,
Andrew David Oxman,
Matthew Prescott Oxman,
Astrid Austvoll-Dahlgren,
Sarah Rosenbaum
m.fl.:
Effects of the Informed Health Choices podcast on the ability of parents of primary school children in Uganda to assess claims about treatment effects: a randomised controlled trial
Jon Helgeland,
Doris Tove Kristoffersen,
Katrine Damgaard Skyrud,
Anja Schou Lindman
:
Variation between Hospitals with Regard to Diagnostic Practice, Coding Accuracy, and Case-Mix. A Retrospective Validation Study of Administrative Data versus Medical Records for Estimating 30-Day Mortality after Hip Fracture
Sahar Hassani,
Anja Schou Lindman,
Doris Tove Kristoffersen,
Oliver Tomic,
Jon Helgeland
:
30-Day Survival Probabilities as a Quality Indicator for Norwegian Hospitals: Data Management and Analysis
PLOS ONE 09. september 2015
DOI
Doris Tove Kristoffersen,
Jon Helgeland,
Halfrid Waage,
Jacob Thalamus,
Dirk Clemens,
Anja Schou Lindman
m.fl.:
Survival curves to support quality improvement in hospitals with excess 30-day mortality after acute myocardial infarction, cerebral stroke and hip fracture: A before-after study
Doris Tove Kristoffersen,
Ingrid Sperre Saunes
:
Responstider for ambulanser og pasientutfall.
Petja Lyn Langholz,
Hilde Leikny Sommerseth,
Doris Tove Kristoffersen,
Laila Arnesdatter Hopstock
:
Childhood socioeconomic position and later-life health – linking a modern health survey to 20th century historical population data
2023
Doris Tove Kristoffersen,
Katrine Damgaard Skyrud,
Jon Helgeland
:
30 dagers overlevelse og reinnleggelse etter sykehusinnleggelse. Litt generelt og noen resultater for 2019.
2022
Doris Tove Kristoffersen,
Katrine Damgaard Skyrud,
Tonya Moen Hansen,
Jon Helgeland
:
Are there still differences between Norwegian hospitals? Ten years reporting of 30-day mortality as a quality indicator.
2022
Doris Tove Kristoffersen,
Katrine Damgaard Skyrud,
Tonya Moen Hansen,
Jon Helgeland
:
10-YEAR EXPERIENCE WHEN CALCULATING AND USING 30-DAY MORTALITY AS A QUALITY INDICATOR FOR NORWEGIAN HOSPITALS
2022
Ingrid Sperre Saunes,
Doris Tove Kristoffersen
:
Emergency preparedness, ambulance response time and patient outcome.
2022
Ingrid Sperre Saunes,
Doris Tove Kristoffersen
:
Ambulansers responstid - regulering og rapportering i ti land
Doris Tove Kristoffersen
:
Historisk befolkningsregister - hva er det og litt om hvordan vi kan bruke det bl.a. i dagens helseundersøkelser
2022
Katrine Damgaard Skyrud,
Doris Tove Kristoffersen,
Jon Helgeland
:
Doris Tove Kristoffersen,
Anette Hylen Ranhoff
:
Hospital readmissions and death within 30 days and 1 year for patients with hip fracture – a multi-state model
2020
Katrine Damgaard Skyrud,
Doris Tove Kristoffersen,
Tonya Moen Hansen,
Jon Helgeland
:
Kvalitet i helsetjenesten: 30 dagers overlevelse og reinnleggelse etter sykehusinnleggelse. Resultater for 2017
Jon Helgeland,
Oliver Tomic,
Doris Tove Kristoffersen,
Sahar Hassani,
Anne Karin Lindahl
:
Is wound dehiscence after laparotomy a useful indicator of patient safety for Norwegian hospitals?
2018
Tonya Moen Hansen,
Doris Tove Kristoffersen,
Anja Elsrud Schou Lindman,
Jon Helgeland
:
30-day mortality after admission for pneumonia based on administrative data - variation between hospitals
2018
Doris Tove Kristoffersen,
Jon Helgeland,
Petter Laake,
Marit Bragelien Veierød
:
Hospitals with high or low 30-day mortality - which method should we use to identify outliers?
2018
Tonya Moen Hansen,
Doris Tove Kristoffersen,
Oliver Tomic,
Jon Helgeland
:
Avoidable hospital admissions, length of hospital stay and probability of 30-day hospital readmission among elderly in Norway
2017
Tonya Moen Hansen,
Doris Tove Kristoffersen,
Oliver Tomic,
Jon Helgeland
:
Kvalitetsindikatoren 30 dagers overlevelse etter sykehusinnleggelse. Resultater for 2016
Jon Petter Blixt,
Alice Beathe Andersgaard,
Halfrid Waage,
Helge Stene-Johansen,
Per Engstrand,
Tonya Moen Hansen
m.fl.:
Experience with using 30-day survival curves to improve quality of care
2017
Doris Tove Kristoffersen,
Tonya Moen Hansen,
Oliver Tomic,
Jon Helgeland
:
Unngåelige innleggelser, liggetid og sannsynlighet for akutt reinnleggelse av eldre pasienter i Norge
2017
Doris Tove Kristoffersen,
Tonya Moen Hansen,
Oliver Tomic,
Jon Helgeland
:
Kvalitetsindikatoren 30 dagers reinnleggelse etter sykehusopphold. Resultater for helseforetak og kommuner 2016
Doris Tove Kristoffersen,
Tonya Moen Hansen,
Anja Elsrud Schou Lindman,
Oliver Tomic,
Jon Helgeland
:
Kvalitetsindikatoren 30 dagers reinnleggelse etter sykehusopphold. Resultater for sykehus og kommuner 2014
Folkehelseinstituttet 2016
ARKIV
Tonya Moen Hansen,
Doris Tove Kristoffersen,
Jon Helgeland
:
Overlevelse ved Sykehuset i Østfold: Oppfølging fra møtet 12.09.2016
2016
Doris Tove Kristoffersen,
Tonya Moen Hansen,
Oliver Tomic,
Anja Schou Lindman,
Jon Helgeland
:
Avoidable hospital admissions, length of hospital stay and probability of 30-day hospital readmission among elderly in Norway
2016
Doris Tove Kristoffersen,
Jon Helgeland,
Jocelyne Clench-Aas,
Petter Laake,
Marit Bragelien Veierød
:
Type I error and power for detecting hospitals with high or low 30-day mortality
2016
Tonya Moen Hansen,
Doris Tove Kristoffersen,
Oliver Tomic,
Jon Helgeland
:
Tonya Moen Hansen,
Doris Tove Kristoffersen,
Oliver Tomic,
Jon Helgeland
:
Folkehelseinstituttet 2016
ARKIV
Anja Schou Lindman,
Doris Tove Kristoffersen,
Tonya Moen Hansen,
Oliver Tomic,
Jon Helgeland
:
Kvalitetsindikatoren 30-dagers overlevelse etter innleggelse i norske sykehus – resultater for året 2014
Doris Tove Kristoffersen,
Anja Schou Lindman,
Oliver Tomic,
Jon Helgeland
:
Re: Hvordan sammenlikner vi kvalitet i helsetjenesten?
Tidsskrift for Den norske legeforening 2015
DOI
Doris Tove Kristoffersen,
Anja Schou Lindman,
Oliver Tomic,
Jon Helgeland
:
Nasjonale kvalitetsindikatorer og resultater for Helgelandssykehuset HF
2015
Anja Schou Lindman,
Oliver Tomic,
Sahar Hassani,
Doris Tove Kristoffersen,
Jon Helgeland
:
30-dagers overlevelse - institusjonsrapporter - 2. utgave
2015
Anja Schou Lindman,
Doris Tove Kristoffersen,
Oliver Tomic
:
30-dagers reinnleggelse av eldre etter utskrivning fra sykehus
2015
Anja Schou Lindman,
Doris Tove Kristoffersen,
Sahar Hassani,
Oliver Tomic,
Jon Helgeland
:
30-dagers reinnleggelse av eldre 2011–2013. Resultater for sykehus og kommuner