Research Topics
| Thomas ClausenSummaryAffiliation: University of Oslo Country: Norway Publications
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Detail Information
Publications
The courage to change: patient perceptions of 12-Step fellowshipsJohn Kåre Vederhus
Addiction Unit, Sørlandet Hospital HF, Kristiansand, Norway
BMC Health Serv Res 11:339. 2011..This study investigated the relationship between patient perceptions of TSGs and the intent to participate in TSGs after receiving detoxification treatment...
Treatment of polydrug-using opiate dependents during withdrawal: towards a standardisation of treatmentØistein Kristensen
Addiction Unit, Sørlandet Hospital, Kristiansand, Norway
BMC Psychiatry 6:54. 2006....
Attitudes towards 12-step groups and referral practices in a 12-step naive treatment culture; a survey of addiction professionals in NorwayJohn Kåre Vederhus
Addiction Unit, Sørlandet Hospital, Kristiansand, Norway
BMC Health Serv Res 9:147. 2009..This study describes clinicians' attitudes and referral practices to TSGs in Norway where health authorities seek to promote self-help participation, but where the treatment culture is unfamiliar with 12-step fellowships...
Predictors of food variety and dietary diversity among older persons in BotswanaThomas Clausen
Department of General Practice and Community Medicine, Faculty of Medicine, University of Oslo, Oslo, Norway
Nutrition 21:86-95. 2005..We investigated whether food variety and diversity are associated with physical and cognitive functioning in older adults in Botswana and designed a simple set of screening questions that predict food variety in this population...
Chronic diseases and health inequalities in older persons in Botswana (southern Africa): a national surveyT Clausen
Department of General Practice and Community Medicine, Faculty of Medicine, University of Oslo, P O Box 1130, Blindern, 0318, Oslo, Norway
J Nutr Health Aging 9:455-61. 2005....
Nutritional status, tobacco use and alcohol consumption of older persons in BotswanaT Clausen
Department of General Practice and Community Medicine, Faculty of Medicine, University of Oslo P O Box 1130, Blindern, 0318 Oslo, Norway
J Nutr Health Aging 10:104-10. 2006..To describe body mass index (BMI) distribution according to patterns of tobacco use, alcohol consumption and sociodemographic factors of older persons in Botswana...
Mortality prior to, during and after opioid maintenance treatment (OMT): a national prospective cross-registry studyThomas Clausen
University of Oslo, Medical Faculty, Institute of Psychiatry, SERAF National Centre for Addiction Research, Oslo, Norway
Drug Alcohol Depend 94:151-7. 2008..The mortality reducing effects of OMT are examined both within treatment and post-treatment. The study separates overdose and total mortality reductions...
Diverse alcohol drinking patterns in 20 African countriesThomas Clausen
University of Oslo, Institute of Psychiatry, Norwegian Centre for Addiction Research, Kirkeveien 166, N 0407 Oslo, Norway
Addiction 104:1147-54. 2009....
Mortality among opiate users: opioid maintenance therapy, age and causes of deathThomas Clausen
University of Oslo, Medical Faculty, Institute of Psychiatry, Norwegian Centre for Addiction Research SERAF, Oslo, Norway
Addiction 104:1356-62. 2009..This study investigates how age of opioid users is related to causes of death prior to, during and after opioid maintenance treatment (OMT), and estimates risks of death from various causes in relation to age...
Engagement with opioid maintenance treatment and reductions in crime: a longitudinal national cohort studyAnne Bukten
SERAF Norwegian Centre for Addiction Research, University of Oslo, Norway
Addiction 107:393-9. 2012..This study investigates changes in criminal involvement among patients in opioid maintenance treatment (OMT) over a 7-year period prior to, during and after treatment, particularly in relation to differences in treatment engagement...
Reductions in convictions for violent crime during opioid maintenance treatment: a longitudinal national cohort studyIngrid Havnes
SERAF Norwegian Centre for Addiction Research, University of Oslo, Kirkevn 166, N 0407 Oslo, Norway
Drug Alcohol Depend 124:307-10. 2012....
Prevalence and clinical relevance of corrected QT interval prolongation during methadone and buprenorphine treatment: a mortality assessment studyKatinka Anchersen
University of Oslo, Institute of Psychiatry, Norwegian Centre for Addiction Research SERAF, Kirkeveien, Oslo, Norway
Addiction 104:993-9. 2009..To determine the prevalence of corrected QT interval (QTc) prolongation among patients in opioid maintenance treatment (OMT) and to investigate mortality potentially attributable to QTc prolongation in the Norwegian OMT programme...
Diversity in causes and characteristics of drug-induced deaths in an urban settingLinn Gjersing
Norwegian Centre for Addiction Research, University of Oslo, Oslo, Norway
Scand J Public Health 41:119-25. 2013....
Staff attitudes and the associations with treatment organisation, clinical practices and outcomes in opioid maintenance treatmentLinn Gjersing
SERAF Norwegian Centre for Addiction Research, Institute of Clinical Medicine, University of Oslo, Kirkeveien 166, Oslo 0407, Norway
BMC Health Serv Res 10:194. 2010..The aim of this study was to 1) assess if there were differences in staff attitudes within a national OMT programme, and 2) investigate the associations of staff attitudes with treatment organisation, clinical practices and outcomes...
Opioid maintenance patients with QTc prolongation: congenital long QT syndrome mutation may be a contributing risk factorKatinka Anchersen
Norwegian Centre for Addiction Research SERAF, University of Oslo, Kirkeveien 166, N 0407 Oslo, Norway
Drug Alcohol Depend 112:216-9. 2010..This study investigates opioid maintenance treatment (OMT) patients found to have corrected QT (QTc) interval above 500 ms, with particular focus on past medical history, genetic testing and cardiac investigations...
Alcohol abstinence and drinking among African women: data from the World Health SurveysPriscilla Martinez
Norwegian Center for Addiction Research, University of Oslo, Kirkeveien 166, 0450 Oslo, Norway
BMC Public Health 11:160. 2011..This study aimed to provide a comparative description of alcohol use among women across 20 African countries...
Diminished mental- and physical function and lack of social support are associated with shorter survival in community dwelling older persons of BotswanaThomas Clausen
University of Oslo, Institute of Psychiatry, Oslo, Norway
BMC Public Health 7:144. 2007..This study may serve as a precursor for more detailed assessments.The objective was to assess diminished function and lack of social support as indicators of short term risk of death...
General practitioners' views on drug-assisted rehabilitationHelge Waal
Norwegian Centre for Addiction Research, Institute of Clinical Medicine, University of Oslo, and Centre for Addiction Treatment, Oslo University Hospital, Norway
Tidsskr Nor Laegeforen 132:1861-6. 2012..To some degree it restricts the doctor's professional autonomy. The investigation aims to examine GPs' attitudes to the model and in particular the experiences of those who have actively participated...
Criminal convictions among dependent heroin users during a 3-year period prior to opioid maintenance treatment: a longitudinal national cohort studyAnne Bukten
SERAF Norwegian Centre for Addiction Research, University of Oslo, Kirkveien 166, Oslo, Norway
J Subst Abuse Treat 41:407-14. 2011..Coordination between treatment providers and police or courts can play an important role in improving outcomes through better access to treatment...
Cross-cultural adaptation of research instruments: language, setting, time and statistical considerationsLinn Gjersing
SERAF Norwegian Centre for Addiction Research, University of Oslo, Oslo, Norway
BMC Med Res Methodol 10:13. 2010..This paper aims to illustrate the process and required steps involved in the cross-cultural adaptation of a research instrument using the adaptation process of an attitudinal instrument as an example...
Addiction research centres and the nurturing of creativity The Norwegian Centre for Addiction Research (SERAF)Jørgen G Bramness
Norwegian Centre for Addiction Research, University of Oslo, Oslo, Norway
Addiction 106:1381-5. 2011....
High intake of energy, sucrose, and polyunsaturated fatty acids is associated with increased risk of preeclampsiaT Clausen
Department of Obstetrics and Gynecology, Aker University Hospital, Oslo, Norway
Am J Obstet Gynecol 185:451-8. 2001..Preeclampsia is associated with high body mass index, insulin resistance, and hypertriglyceridemia. Our objective was to investigate prospectively whether diet in the first half of pregnancy is associated with the risk for preeclampsia...
Altered plasma concentrations of leptin, transforming growth factor-beta(1) and plasminogen activator inhibitor type 2 at 18 weeks of gestation in women destined to develop pre-eclampsia. Circulating markers of disturbed placentation?T Clausen
Department of Obstetrics and Gynaecology, Aker and Ulleval University Hospitals, Oslo, Norway
Placenta 23:380-5. 2002..Our objective was to investigate if disturbed placentation in pre-eclamptic women may be recognized in early second trimester as altered plasma levels of factors involved in the formation of the uteroplacental unit...
Dyslipidemia in early second trimester is mainly a feature of women with early onset pre-eclampsiaT Clausen
Department of Obstetrics and Gynaecology, Aker and Ullevaal University Hospitals, Oslo, Norway
BJOG 108:1081-7. 2001....
