Kristoffer Rypdal

Affiliations

Department of Mathematics and Statistics, UiT-The Arctic University of Norway, 9019 Tromsø, Norway.

ORCID: 0000-0001-9306-5441

Publications (13)

The Tipping Effect of Delayed Interventions on the Evolution of COVID-19 Incidence.

International journal of environmental research and public health

Avec: Kristoffer Rypdal

Suicidal and violent ideation in acute psychiatric inpatients: prevalence, co-occurrence, and associated characteristics.

Suicide & life-threatening behavior

Avec: Desiré Furnes , Rolf Gjestad , Knut Rypdal , Lars Mehlum , Stephen Hart , Ketil J Oedegaard , Liv Mellesdal

Vitamin D Supplementation during Winter: Effects on Stress Resilience in a Randomized Control Trial.

Nutrients

Avec: Anita L Hansen , Gina Ambroziak , David Thornton , James C Mundt , Rachel E Kahn , Lisbeth Dahl , Leif Waage , Daniel Kattenbraker , Pedro Araujo , Robert Murison , Knut Rypdal , Bjørn Grung

Effect of Pharmacological Treatment of Attention-Deficit/Hyperactivity Disorder on Criminality.

Journal of the American Academy of Child and Adolescent Psychiatry

Avec: Tarjei Widding-Havneraas , Henrik Daae Zachrisson , Simen Markussen , Felix Elwert , Ingvild Lyhmann , Ashmita Chaulagain , Ingvar Bjelland , Anne Halmøy , Knut Rypdal , Arnstein Mykletun

Estimation of Excess Mortality and Years of Life Lost to COVID-19 in Norway and Sweden between March and November 2020.

International journal of environmental research and public health

Avec: Martin Rypdal , Kristoffer Rypdal , Ola Løvsletten , Sigrunn Holbek Sørbye , Elinor Ytterstad , Filippo Maria Bianchi

Effect of ADHD medication on risk of injuries: a preference-based instrumental variable analysis.

European child & adolescent psychiatry

Avec: Tarjei Widding-Havneraas , Felix Elwert , Simen Markussen , Henrik Daae Zachrisson , Ingvild Lyhmann , Ashmita Chaulagain , Ingvar Bjelland , Anne Halmøy , Knut Rypdal , Arnstein Mykletun

Violence rate dropped during a shift to individualized patient-oriented care in a high security forensic psychiatric ward.

BMC psychiatry

Avec: Ragnar Urheim , Tom Palmstierna , Knut Rypdal , Rolf Gjestad , Mette Senneseth , Arnstein Mykletun

A Parsimonious Description and Cross-Country Analysis of COVID-19 Epidemic Curves.

International journal of environmental research and public health

Avec: Kristoffer Rypdal , Martin Rypdal

Intervention Fatigue is the Primary Cause of Strong Secondary Waves in the COVID-19 Pandemic.

International journal of environmental research and public health

Avec: Kristoffer Rypdal , Filippo Maria Bianchi , Martin Rypdal

Long term outcomes and causal modelling of compulsory inpatient and outpatient mental health care using Norwegian registry data: Protocol for a controversies in psychiatry research project.

International journal of methods in psychiatric research

Avec: Tore Hofstad , Olav Nyttingnes , Simen Markussen , Erik Johnsen , Eoin Killackey , David McDaid , Miles Rinaldi , Kimberlie Dean , Beate Brinchmann , Kevin Douglas , Linda Gröning , Stål Bjørkly , Tom Palmstierna , Maria Fagerbakke Strømme , Anne Blindheim , Jorun Rugkåsa , Bjørn Morten Hofmann , Reidar Pedersen , Tarjei Widding-Havneraas , Knut Rypdal , Arnstein Mykletun

Characteristics of aggressive incidents in emergency primary health care described by the Staff Observation Aggression Scale - Revised Emergency (SOAS-RE).

BMC health services research

Avec: Grethe E Johnsen , Tone Morken , Valborg Baste , Knut Rypdal , Tom Palmstierna , Ingrid Hjulstad Johansen

Modelling suggests limited change in the reproduction number from reopening Norwegian kindergartens and schools during the COVID-19 pandemic.

PloS one

Avec: Martin Rypdal , Veronika Rypdal , Per Kristen Jakobsen , Elinor Ytterstad , Ola Løvsletten , Claus Klingenberg , Kristoffer Rypdal

Causal modelling of variation in clinical practice and long-term outcomes of ADHD using Norwegian registry data: the ADHD controversy project.

BMJ open

Avec: Arnstein Mykletun , Tarjei Widding-Havneraas , Ashmita Chaulagain , Ingvild Lyhmann , Ingvar Bjelland , Anne Halmøy , Felix Elwert , Peter Butterworth , Simen Markussen , Henrik Daae Zachrisson , Knut Rypdal

Réseau de co-auteurs

Knut Rypdal 8 collaborations

Arnstein Mykletun 5 collaborations

Tarjei Widding-Havneraas 4 collaborations

Simen Markussen 4 collaborations

Martin Rypdal 4 collaborations

Henrik Daae Zachrisson 3 collaborations

Felix Elwert 3 collaborations

Ingvild Lyhmann 3 collaborations

Ashmita Chaulagain 3 collaborations

Ingvar Bjelland 3 collaborations

Anne Halmøy 3 collaborations

Tom Palmstierna 3 collaborations

Rolf Gjestad 2 collaborations

Ola Løvsletten 2 collaborations

Elinor Ytterstad 2 collaborations

Filippo Maria Bianchi 2 collaborations

Desiré Furnes 1 collaboration

Lars Mehlum 1 collaboration

Stephen Hart 1 collaboration

Ketil J Oedegaard 1 collaboration

Liv Mellesdal 1 collaboration

Anita L Hansen 1 collaboration

Gina Ambroziak 1 collaboration

David Thornton 1 collaboration

James C Mundt 1 collaboration

Rachel E Kahn 1 collaboration

Lisbeth Dahl 1 collaboration

Leif Waage 1 collaboration

Daniel Kattenbraker 1 collaboration

Pedro Araujo 1 collaboration

Robert Murison 1 collaboration

Bjørn Grung 1 collaboration

Sigrunn Holbek Sørbye 1 collaboration

Ragnar Urheim 1 collaboration

Mette Senneseth 1 collaboration

Tore Hofstad 1 collaboration

Olav Nyttingnes 1 collaboration

Erik Johnsen 1 collaboration

Eoin Killackey 1 collaboration

David McDaid 1 collaboration

Miles Rinaldi 1 collaboration

Kimberlie Dean 1 collaboration

Beate Brinchmann 1 collaboration

Kevin Douglas 1 collaboration

Linda Gröning 1 collaboration

Stål Bjørkly 1 collaboration

Maria Fagerbakke Strømme 1 collaboration

Anne Blindheim 1 collaboration

Jorun Rugkåsa 1 collaboration

Bjørn Morten Hofmann 1 collaboration

Reidar Pedersen 1 collaboration

Grethe E Johnsen 1 collaboration

Tone Morken 1 collaboration

Valborg Baste 1 collaboration

Ingrid Hjulstad Johansen 1 collaboration

Veronika Rypdal 1 collaboration

Per Kristen Jakobsen 1 collaboration

Claus Klingenberg 1 collaboration

Peter Butterworth 1 collaboration