Jón G. Stefánsson

ORCID: 0000-0001-7293-0969
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About
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Research Areas
  • Child and Adolescent Psychosocial and Emotional Development
  • Suicide and Self-Harm Studies
  • Health, psychology, and well-being
  • Fibromyalgia and Chronic Fatigue Syndrome Research
  • Musculoskeletal pain and rehabilitation
  • Mental Health Treatment and Access
  • Mental Health and Psychiatry
  • Health, Environment, Cognitive Aging
  • Systemic Lupus Erythematosus Research
  • Substance Abuse Treatment and Outcomes
  • Health disparities and outcomes
  • Anxiety, Depression, Psychometrics, Treatment, Cognitive Processes
  • Psychosomatic Disorders and Their Treatments
  • Schizophrenia research and treatment
  • Posttraumatic Stress Disorder Research
  • Personality Disorders and Psychopathology
  • Peripheral Neuropathies and Disorders
  • Semantic Web and Ontologies
  • Behavioral Health and Interventions
  • Nuts composition and effects
  • Alcohol Consumption and Health Effects
  • Historical and Archaeological Studies
  • Spine and Intervertebral Disc Pathology
  • Occupational Health and Performance
  • Evolutionary Psychology and Human Behavior

Karolinska Institutet
2010-2016

Karolinska University Hospital
2010-2015

National University Hospital of Iceland
1966-2010

Reykjavík Energy (Iceland)
2009

Reykjavík University
1996

National University Hospital
1993-1996

University of Iceland
1976-1985

University of Rochester
1976

This paper considers data on hysterical neurosis, conversion type from the Monroe County (New York) Cumulative Psychiatric Case Register, Register in Iceland, and a psychiatric consultation service university teaching general hospital during period 1960 to 1969. The rate of this was 22 per 100,000 year, whereas Iceland it 11 year. It highest for women, non-whites those low social economic status. "probable" combined among patients seen 4.5%. most often noted diagnostic criteria were...

10.1111/j.1600-0447.1976.tb00066.x article EN Acta Psychiatrica Scandinavica 1976-02-01

The lifetime prevalence rates are presented for mental disorders in a random sample of people born Iceland 1931, interviewed at the age 55–57 years. diagnoses made according to DSM‐III, on basis National Institute Mental Health's diagnostic Interview Schedule (NIMH‐DIS) used by trained lay interviewers. most common were alcohol abuse and dependence, generalized anxiety disorder, phobic disorders, dysthymic disorder major depressive episode. Disorders more men antisocial personality,...

10.1111/j.1600-0447.1991.tb03118.x article EN Acta Psychiatrica Scandinavica 1991-08-01

The lifetime prevalence of anxiety disorders was estimated in a study the mental Iceland. survey instrument an Icelandic translation US National Institute Mental Health Diagnostic Interview Schedule. cohort consisted one half those born year 1931. participation rate 79.3%. overall 44%, with phobia effecting 18%. most common disorder generalized anxiety, which had 22% and more among women. Simple phobic (8.8%), followed by agoraphobia without panic (3.8%), social (3.5%). female-male ratio for...

10.1111/j.1600-0447.1993.tb03410.x article EN Acta Psychiatrica Scandinavica 1993-07-01

Objective: This study tests the suggestion of earlier studies concerning importance genetic factors in etiology win ter seasonal affective disorders (SADs) and sub syndromal SAD (S- SAD). Method: Two populations Winnipeg, Manitoba residents were canvassed: 250 adults wholly Icelandic de scent 1000 non-Icelandic scent. We distributed Seasonal Pattern Assessment Questionnaire by mail to these 2 populations, yielding 204 449 valid responses, respectively. Results: Rates S- proved markedly lower...

10.1177/070674370204700205 article EN The Canadian Journal of Psychiatry 2002-03-01

High suicide intent, childhood trauma, and violent behavior are risk factors for in attempters. The aim of this study was to investigate whether the combined assessment intent interpersonal violence would provide a better prediction than an only or violence. This is cohort involving 81 attempters included between 1993 1998. Patients were assessed with both Suicide Intent Scale (SIS) Karolinska Interpersonal Violence (KIVS). Through unique personal identification number Sweden, patients...

10.1186/s12888-015-0607-6 article EN cc-by BMC Psychiatry 2015-09-23

The prevalence of lifetime psychiatric disorders was investigated among all known systemic lupus erythematosus (SLE) patients in Iceland. participation rate 81%. Over 49% the subjects received a diagnosis. number diagnoses per person 2.3. most common disorder those with phobia (56%), followed by generalized anxiety (12%). Agoraphobia and without panic, simple, social phobia, alcohol abuse were found to be more SLE comparison population sample (p < 0.02; p 0.0001; 0.001; 0.05, respectively)....

10.3109/03009749509095179 article EN Scandinavian Journal of Rheumatology 1995-01-01

The association between pain in general, back and smoking was studied a sample of subjects from the general public (n = 862). results show that men had problems more frequently than women (p < 0.0001). In comparison with non-smokers, smokers were found to have pains 0.01). Male also higher frequency intervertebral disc female 0.009). encountered by indicates possible connection pain.

10.2340/1650197719963338 article EN Journal of Rehabilitation Medicine 1996-03-01

The frequency with which symptoms of depression are found among subjects either a lifetime diagnosis or dysthymia and no psychiatric disorders, analysed. data is derived from large study (n=862) on the prevalence mental disorders was conducted in Iceland. survey instrument NIMH-Diagnostic Interview Schedule (DIS). Results 379 reported this study, these have experienced Major Depressive Episode (n=46), (n=32) disorder (n=301). grouped together hierarchical tables displayed In groupings...

10.1177/002076409103700402 article EN International Journal of Social Psychiatry 1991-12-01

In order to clarify the lifetime likelihood of developing psychiatric disorder following Akureyri disease, we have investigated 55 well documented cases disease.All participants were interviewed and diagnosed as disorders according DSM-III.Of subjects included in this analysis 53 women. The mean age was 67.7 years. most common problem agoraphobia with panic attacks 12.7% (P < 0.0001); without 21.8% social phobia 14.5% 0.001); simple 18.1% 0.05); schizophrenia 3.6% 0.01); alcohol dependence...

10.1111/j.1600-0404.1997.tb00259.x article EN Acta Neurologica Scandinavica 2009-01-29

ABSTRACT– This study compares the 30‐item version of General Health Questionnaire (GHQ) and psychiatric section Cornell Medical Index (CMI‐MR) using normative data from a sample general population practice patients where clinical assessment by psychiatrist is used as criterion caseness. In this CMI‐MR has slightly better overall performance screening test. It appears that errs in direction false negatives when symptoms are recent related to situational stress, but GHQ tendency miss cases...

10.1111/j.1600-0447.1985.tb02643.x article EN Acta Psychiatrica Scandinavica 1985-11-01

Objective To assess the predictive value of Suicide Intent Scale in patients with a high suicide risk. The secondary aim was to if use factors would offer better case detection. Finally short version scale created after an item analysis. Method Eighty-one attempters were assessed Beck‘s (SIS). All followed up for cause death. Receiver-operating characteristic (ROC) curves and tables establish optimal cut-off values SIS predict suicide. Results Seven committed during mean follow 9.5 years....

10.1016/s0924-9338(11)73353-3 article EN European Psychiatry 2011-03-01

Líndal E, Thorlacius S, Stefánsson JG, Steinsson K. Pain and Problems among Subjects with Systemic Lupus Erythematosus in Iceland. Scand J Rheumatol. 1993; 22: 10–13.This population study includes the majority of all systemic lupus erythematosus (SLE) patients Iceland (n = 65). The lists various self-rated pain descriptions both from a 54–item questionnaire somatisation section Diagnostic Interview Schedule (DIS). Results show SLE to have significantly more joint chest than does another...

10.3109/03009749309095104 article EN Scandinavian Journal of Rheumatology 1993-01-01

23 women with chronic symptoms of fatigue and pain used a gridded form to localize pain. Most frequent experiences were in the neck right buttock (44% subjects), upper parts chest, left calf, lower back by 40%.

10.2466/pms.1996.83.2.508 article EN Perceptual and Motor Skills 1996-10-01
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