Search results for: Thomas Clausen

Items from 1 to 20 out of 111 results

article

Optimal deployment of indoor wireless local area networks

Antoine Oustry, Marion Le Tilly, Thomas Clausen, Claudia D'Ambrosio, more

We present a two‐phase methodology to address the problem of optimally deploying indoor wireless local area networks. In the first phase, we use Helmholtz's equation to simulate electromagnetic fields in a typical environment such as an office floor. The linear system which results from the discretization of this partial differential equation is solved with a state‐of‐the‐art library for sparse linear...

article

What lessons from Norway's experience could be applied in the United States in response to the addiction and overdose crisis?

Thomas Clausen

Addiction > 117 > 7 > 2126 - 2126

article

Opioid overdose deaths and the expansion of opioid agonist treatment: a population‐based prospective cohort study

Ole Rogeberg, Daniel Bergsvik, Thomas Clausen

Addiction > 117 > 5 > 1363 - 1371

Background and aim Effective policies to reduce drug‐related overdoses remain a public health priority. We aimed to estimate the causal effects of a national opioid agonist treatment (OAT) program on population level drug fatalities. Design Population‐based prospective cohort study exploiting supply driven variation in treatment uptake across cohort‐age groups generated by the introduction and...

article

What lessons from Norway’s experience could be applied in the United States in response to the addiction and overdose crisis?

Thomas Clausen

Addiction > 117 > 5 > 1192 - 1194

article

Describing long‐term opioid use utilizing Nordic prescription registers—A Norwegian example

Aleksi Hamina, Vidar Hjellvik, Marte Handal, Ingvild Odsbu, more

Basic & Clinical Pharmacology & Toxicology > 130 > 4 > 481 - 491

Previous studies have defined long‐term opioid use in varying ways, decreasing comparability, reproducibility and clinical applicability of the research. Based on recommendations from recent systematic reviews, we aimed to develop a methodology to estimate the prevalence of use persisting more than three months utilizing one of the Nordic prescription registers. We used the Norwegian Prescription...

article

Organ pathologies detected post‐mortem in patients receiving opioid agonist treatment for opioid use disorder: a nation‐wide 2‐year cross‐sectional study

Anne Berit Bech, Thomas Clausen, Helge Waal, Gerd Jorunn Møller Delaveris, more

Addiction > 117 > 4 > 977 - 985

Aims To document organ pathologies detected post‐mortem in patients receiving opioid agonist treatment for opioid use disorder and estimate the extent to which individual characteristics are associated with pulmonary, cardiovascular, hepatic or renal pathologies. Design Two‐year cross‐sectional nation‐wide study. Setting Norway. Participants Among all 200 patients who died during opioid agonist...

article

Filled prescriptions for opioids among children and adolescents – A nationwide study from 2010 to 2018

Aleksi Hamina, Marte Handal, Olav Fredheim, Thomas Clausen, more

Acta Anaesthesiologica Scandinavica > 65 > 10 > 1475 - 1483

Background Prescribing opioids for children and adolescents should be reserved for advanced life‐limiting diseases and moderate‐to‐severe acute pain. Pediatric codeine use is discouraged by several authorities, but the effects of these recommendations are not fully known. We investigated opioid utilization trends among 0–18‐year‐olds and characterized those who filled ≥1 opioid prescriptions, with...

article

Postmortem toxicological analyses of blood samples from 107 patients receiving opioid agonist treatment: substances detected and pooled opioid and benzodiazepine concentrations

Anne Berit Bech, Thomas Clausen, Helge Waal, Vigdis Vindenes, more

Addiction > 116 > 4 > 845 - 855

Aims To present the substances and their concentrations detected postmortem in patients receiving opioid agonist treatment (OAT) stratified by cause of death, estimate the pooled opioid and benzodiazepine concentrations using established conversion factors for blood concentrations from the Norwegian Road Traffic Act and explore the association between drug‐induced cause of death and the pooled opioid...

article

Can a participatory organizational intervention improve social capital and organizational readiness to change? Cluster randomized controlled trial at five Danish hospitals

Markus Due Jakobsen, Thomas Clausen, Lars Louis Andersen

Journal of Advanced Nursing > 76 > 10 > 2685 - 2695

Aim This study investigates the effect of a participatory organizational intervention on social capital and organizational readiness for change. Design Cluster randomized controlled trial. Methods In 2016, 27 departments from five hospitals in Denmark were randomly allocated at the department level to 1 year of participatory intervention (14 clusters, 316 healthcare workers) or a control group...

article

Readiness to change among involuntarily and voluntarily admitted patients with substance use disorders

Anne Opsal, Øistein Kristensen, Thomas Clausen

Substance Abuse Treatment, Prevention, and Policy > 2019 > 14 > 1 > 1-10

Background Health care workers in the addiction field have long emphasised the importance of a patient’s motivation on the outcome of treatments for substance use disorders (SUDs). Many patients entering treatment are not yet ready to make the changes required for recovery and are often unprepared or sometimes unwilling to modify their behaviour. The present study compared stages of readiness to change...

article

Mortality and causes of death among patients with opioid use disorder receiving opioid agonist treatment: a national register study

Anne Berit Bech, Thomas Clausen, Helge Waal, Jūratė Šaltytė Benth, more

BMC Health Services Research > 2019 > 19 > 1 > 1-10

Background Mortality rates and causes of death among individuals in opioid agonist treatment (OAT) vary according to several factors such as geographical region, age, gender, subpopulations, drug culture and OAT status. Patients in OAT are ageing due to effective OAT as well as demographic changes, which has implications for morbidity and mortality. Norway has one of the oldest OAT populations in...

article

Effect of a participatory organizational workplace intervention on workplace social capital: post-hoc results from a cluster randomized controlled trial

Elisabeth Framke, Ole Henning Sørensen, Jacob Pedersen, Thomas Clausen, more

BMC Public Health > 2019 > 19 > 1 > 1-10

Background A high level of workplace social capital (WSC) may contribute to the protection of employees’ health. We hypothesized that a participatory workplace intervention would increase the level of WSC defined as vertical WSC (i.e. WSC linking together employees and their leaders) and horizontal WSC (i.e. WSC bonding employees together). Methods We conducted a secondary data analysis of a cluster...

article

Confirming the factor structure of a generic quality of life instrument among pre-treatment substance use disorder patients

Ashley Elizabeth Muller, Svetlana Skurtveit, Thomas Clausen

Health and Quality of Life Outcomes > 2019 > 17 > 1 > 1-5

Background Quality of life (QoL) is a patient-reported outcome of increasing importance in the substance use disorder (SUD) treatment field, and impaired QoL may be an important impetus for treatment uptake. Instruments and methodologies abound, precluding comparison, as does a dearth of population norms. The QOL10 is a generic, overall QoL tool containing ten items and with simple scoring procedures...

article

Does leadership support buffer the effect of workplace bullying on the risk of disability pensioning? An analysis of register-based outcomes using pooled survey data from 24,538 employees

Thomas Clausen, Paul Maurice Conway, Hermann Burr, Tage S. Kristensen, more

International Archives of Occupational and Environmental Health > 2019 > 92 > 7 > 941-948

Purpose To investigate whether self-reported exposure to workplace bullying predicts the risk of disability pensioning among employees in two occupational groups—(1) employees working with clients or customers and (2) office workers and manual workers—and whether leadership support and occupational group moderates that association. Methods Survey data from 24,538 employees (112,889 person years)...

article

The association of vertical and horizontal workplace social capital with employees’ job satisfaction, exhaustion and sleep disturbances: a prospective study

Elisabeth Framke, Ole Henning Sørensen, Jacob Pedersen, Thomas Clausen, more

International Archives of Occupational and Environmental Health > 2019 > 92 > 6 > 883-890

Purpose Workplace social capital (WSC) may be beneficial for employees’ health and well-being; however, most studies have analyzed WSC on the individual and not the workplace level. We test whether higher compared to lower levels of vertical WSC (WSC between employees and superiors) and horizontal WSC (WSC between employees), measured at the workplace level, is prospectively associated with higher...

article

Performance of the WHOQOL-BREF among Norwegian substance use disorder patients

Ashley Elizabeth Muller, Svetlana Skurtveit, Thomas Clausen

BMC Medical Research Methodology > 2019 > 19 > 1 > 1-9

Background Quality of life (QoL) is an established outcome measure of substance use disorder treatment. The WHOQOL-BREF is the gold standard tool, but its appropriateness for particularly vulnerable patient populations must be further explored. This article examines the scaling qualities of the WHOQOL-BREF in a Norwegian substance use disorder population, and explores relationships with social and...

article

Tramadol use in Norway: A register‐based population study

Hanne Birke, Ola Ekholm, Per Sjøgren, Olav Fredheim, more

Pharmacoepidemiology and Drug Safety > 28 > 1 > 54 - 61

Purpose Increasing use of tramadol for chronic non‐cancer pain is concerning since tramadol users may be at risk of developing recurrent opioid use with increasing opioid consumption and co‐medication. Therefore, we investigated a complete national cohort of tramadol users. Methods The study population (154 042 adult individuals in Norway, who redeemed ≥ one tramadol prescription in 2012) was stratified...

article

Naloxone distribution and possession following a large‐scale naloxone programme

Desiree Madah‐Amiri, Linn Gjersing, Thomas Clausen

Addiction > 114 > 1 > 92 - 100

Aims To examine uptake following a large‐scale naloxone programme by estimating distribution rates since programme initiation and the proportion among a sample of high‐risk individuals who had attended naloxone training, currently possessed or had used naloxone. We also estimated the likelihood of naloxone possession and use as a function of programme duration, individual descriptive and substance...

article

Comorbid symptoms of depression and musculoskeletal pain and risk of long term sickness absence

Ole Melkevik, Thomas Clausen, Jacob Pedersen, Anne Helene Garde, more

BMC Public Health > 2018 > 18 > 1 > 1-9

Background Symptoms of depression and musculoskeletal pain have both been found to be associated with increased risk of long term sickness absence (LTSA). The comorbidity between depression and pain i.e. simultaneous presence of both symptoms, is well established in the literature. The aim for the current investigation was to investigate whether the presence of comorbid pain influences the associations...

article

Impact of workplace bullying on missed nursing care and quality of care in the eldercare sector

Annie Hogh, Marianne Baernholdt, Thomas Clausen

International Archives of Occupational and Environmental Health > 2018 > 91 > 8 > 963-970

Purpose To analyze the long-term impact of bullying among healthcare providers (T1) on missed nursing care and quality of care 2 years later (T2) and to test the potential mediating effect of affective organizational commitment. Methods Survey data from healthcare providers in the eldercare sector in 2006 (T1) and 2008 (T2). At T1, 9212 employees participated in the survey and 5202 participated...

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INFONA - science communication portal

Search results for: Thomas Clausen

Optimal deployment of indoor wireless local area networks

What lessons from Norway's experience could be applied in the United States in response to the addiction and overdose crisis?

Opioid overdose deaths and the expansion of opioid agonist treatment: a population‐based prospective cohort study

What lessons from Norway’s experience could be applied in the United States in response to the addiction and overdose crisis?

Describing long‐term opioid use utilizing Nordic prescription registers—A Norwegian example

Organ pathologies detected post‐mortem in patients receiving opioid agonist treatment for opioid use disorder: a nation‐wide 2‐year cross‐sectional study

Filled prescriptions for opioids among children and adolescents – A nationwide study from 2010 to 2018

Postmortem toxicological analyses of blood samples from 107 patients receiving opioid agonist treatment: substances detected and pooled opioid and benzodiazepine concentrations

Can a participatory organizational intervention improve social capital and organizational readiness to change? Cluster randomized controlled trial at five Danish hospitals

Readiness to change among involuntarily and voluntarily admitted patients with substance use disorders

Mortality and causes of death among patients with opioid use disorder receiving opioid agonist treatment: a national register study

Effect of a participatory organizational workplace intervention on workplace social capital: post-hoc results from a cluster randomized controlled trial

Confirming the factor structure of a generic quality of life instrument among pre-treatment substance use disorder patients

Does leadership support buffer the effect of workplace bullying on the risk of disability pensioning? An analysis of register-based outcomes using pooled survey data from 24,538 employees

The association of vertical and horizontal workplace social capital with employees’ job satisfaction, exhaustion and sleep disturbances: a prospective study

Performance of the WHOQOL-BREF among Norwegian substance use disorder patients

Tramadol use in Norway: A register‐based population study

Naloxone distribution and possession following a large‐scale naloxone programme

Comorbid symptoms of depression and musculoskeletal pain and risk of long term sickness absence

Impact of workplace bullying on missed nursing care and quality of care in the eldercare sector

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