| Increased mortality in schizophrenia due to cardiovascular disease–a non-systematic review of epidemiology, possible causes, and interventions PA Ringen, JA Engh, AB Birkenaes, I Dieset, OA Andreassen Frontiers in psychiatry 5, 96336, 2014 | 414 | 2014 |
| Neurocognitive dysfunction in bipolar and schizophrenia spectrum disorders depends on history of psychosis rather than diagnostic group C Simonsen, K Sundet, A Vaskinn, AB Birkenaes, JA Engh, A Færden, ... Schizophrenia bulletin 37 (1), 73-83, 2011 | 357 | 2011 |
| The level of cardiovascular risk factors in bipolar disorder equals that of schizophrenia: a comparative study AB Birkenaes, S Opjordsmoen, C Brunborg, JA Engh, H Jonsdottir, ... Journal of Clinical Psychiatry 68 (6), 917-923, 2007 | 239 | 2007 |
| Neurocognitive profiles in bipolar I and bipolar II disorder: differences in pattern and magnitude of dysfunction C Simonsen, K Sundet, A Vaskinn, AB Birkenaes, JA Engh, CF Hansen, ... Bipolar disorders 10 (2), 245-255, 2008 | 225 | 2008 |
| Predictors of medication adherence in patients with schizophrenia and bipolar disorder H Jónsdóttir, S Opjordsmoen, AB Birkenaes, C Simonsen, JA Engh, ... Acta Psychiatrica Scandinavica 127 (1), 23-33, 2013 | 200 | 2013 |
| Delusions are associated with poor cognitive insight in schizophrenia JA Engh, S Friis, AB Birkenaes, H Jónsdóttir, O Klungsøyr, PA Ringen, ... Schizophrenia bulletin 36 (4), 830-835, 2010 | 152 | 2010 |
| Medication adherence in outpatients with severe mental disorders: relation between self-reports and serum level H Jónsdóttir, S Opjordsmoen, AB Birkenaes, JA Engh, PA Ringen, ... Journal of clinical psychopharmacology 30 (2), 169-175, 2010 | 150 | 2010 |
| Fighting stigma of mental illness in midsize European countries A Beldie, JA Den Boer, C Brain, E Constant, ML Figueira, I Filipcic, ... Social psychiatry and psychiatric epidemiology 47, 1-38, 2012 | 143 | 2012 |
| The effect of gender on emotion perception in schizophrenia and bipolar disorder A Vaskinn, K Sundet, S Friis, C Simonsen, AB Birkenaes, JA Engh, ... Acta Psychiatrica Scandinavica 116 (4), 263-270, 2007 | 142 | 2007 |
| Dyslipidemia independent of body mass in antipsychotic-treated patients under real-life conditions AB Birkenaes, KI Birkeland, JA Engh, A Faerden, H Jonsdottir, PA Ringen, ... Journal of clinical psychopharmacology 28 (2), 132-137, 2008 | 139 | 2008 |
| Measuring cognitive insight in schizophrenia and bipolar disorder: a comparative study JA Engh, S Friis, AB Birkenaes, H Jónsdóttir, PA Ringen, T Ruud, ... BMC psychiatry 7, 1-7, 2007 | 113 | 2007 |
| Excessive substance use in bipolar disorder is associated with impaired functioning rather than clinical characteristics, a descriptive study TV Lagerberg, OA Andreassen, PA Ringen, AO Berg, S Larsson, I Agartz, ... BMC psychiatry 10, 1-9, 2010 | 108 | 2010 |
| Differences in prevalence and patterns of substance use in schizophrenia and bipolar disorder PA Ringen, TV Lagerberg, AB Birkenaes, J Engn, A Faerden, H Jonsdottir, ... Psychological Medicine 38 (9), 1241-1249, 2008 | 107 | 2008 |
| Excessive cannabis use is associated with earlier age at onset in bipolar disorder TV Lagerberg, K Sundet, SR Aminoff, AO Berg, PA Ringen, ... European archives of psychiatry and clinical neuroscience 261, 397-405, 2011 | 104 | 2011 |
| Opposite relationships between cannabis use and neurocognitive functioning in bipolar disorder and schizophrenia PA Ringen, A Vaskinn, K Sundet, JA Engh, H Jonsdottir, C Simonsen, ... Psychological Medicine 40 (8), 1337-1347, 2010 | 96 | 2010 |
| Opposite relationships between cannabis use and neurocognitive functioning in bipolar disorder and schizophrenia PA Ringen, A Vaskinn, K Sundet, JA Engh, H Jonsdottir, C Simonsen, ... Psychological Medicine 40 (8), 1337-1347, 2010 | 95 | 2010 |
| Cannabis use is associated with 3 years earlier onset of schizophrenia spectrum disorder in a naturalistic, multi-site sample (N= 1119) S Helle, PA Ringen, I Melle, TK Larsen, R Gjestad, E Johnsen, ... Schizophrenia research 170 (1), 217-221, 2016 | 93 | 2016 |
| Emotion perception and learning potential: mediators between neurocognition and social problem-solving in schizophrenia? A Vaskinn, K Sundet, S Friis, C Simonsen, AB Birkenaes, H Jonsdottir, ... Journal of the International Neuropsychological Society 14 (2), 279-288, 2008 | 89 | 2008 |
| The level of illicit drug use is related to symptoms and premorbid functioning in severe mental illness PA Ringen, I Melle, AB Birkenaes, JA Engh, A Faerden, A Vaskinn, S Friis, ... Acta Psychiatrica Scandinavica 118 (4), 297-304, 2008 | 82 | 2008 |
| Illicit drug use in patients with psychotic disorders compared with that in the general population: a cross‐sectional study PA Ringen, I Melle, AB Birkenaes, JA Engh, A Faerden, H Jonsdottir, ... Acta Psychiatrica Scandinavica 117 (2), 133-138, 2008 | 76 | 2008 |
