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      Temporal order of cancers and mental disorders in an adult population

      research-article
      , PhD, , BSc, MD, MPA, FRCPC, , MD, PhD, , MSc, , MD MSc, , MD, PhD, FRCPsych
      BJPsych Open
      Cambridge University Press
      Temporal comorbidity, cancer, mental disorder, physician diagnosis, population, adult, psychiatric disorder

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          Abstract

          Background

          Population-based examination of comorbidity is an emerging field of study.

          Aims

          The purpose of the present population level study is to expand our understanding of how cancer and mental illness are temporally associated.

          Method

          A sample of 83 648 056 physician billing records for 664 838 (56% female) unique individuals over the age of 18 was stratified on ages 19–49 years and 50+ years, with temporal order of mental disorder and cancer forming the basis of comparison.

          Results

          Mental disorders preceded cancers for both genders within each age strata. The full range of cancers and mental disorders preceding or following each pivot ICD class are described in terms of frequency of diagnosis and duration in days, with specific examples illustrated.

          Conclusions

          The temporal comorbidity between specific cancers and mental disorders may be useful in screening or clinical planning and may represent indicators of disease mechanism that warrant further screening or investigation.

          Declaration of interest

          None.

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          Most cited references38

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          Molecular basis of metastasis.

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            The predictive value of self assessed general, physical, and mental health on functional decline and mortality in older adults.

            To examine the extent to which older people's self assessments of general health, physical health, and mental health predict functional decline and mortality. The study uses population-based secondary data from the US Longitudinal Study of Aging (LSOA). A total of 7527 persons aged 70 years or above living in the community. Eight different measures on self reported general, physical, and mental health were used. Change in functional status was measured using a composite index of ADLs and IADLs over a period of six years. Duration of survival was calculated over a period of seven years. Adjusting for age and gender, multiple logistic regression was used in analysing functional decline, and Cox proportional hazard model, for mortality. Then all of the self assessed health measures were incorporated into the final model--controlling for baseline sociodemographic characteristics, functional status, disease/conditions, and use of health and social services--to assess the independent contribution of each measure in predicting future health outcomes. Overall, older people's self assessed general, physical, and mental health were predictive of functional decline and mortality. In multivariate analyses, older people who assessed their global health, self care ability, and physical activity less favourably were more likely to experience poor health outcomes. Gender disparity, however, was observed with poor global health affecting functional decline in men only. Self care ability was predictive of functioning in women only, whereas it was predictive of mortality in men only. Self assessed global health, as well as, specific dimensions of health act as significant, independent predictors of functioning and mortality in a community dwelling older people.
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              Clinical Diagnosis of Mental Disorders Immediately Before and After Cancer Diagnosis: A Nationwide Matched Cohort Study in Sweden.

              Psychiatric comorbidities are common among patients with cancer. However, whether or not there is increased risk of mental disorders during the diagnostic workup leading to a cancer diagnosis was unknown.
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                Author and article information

                Contributors
                Role: Professor (Adjunct)
                Journal
                BJPsych Open
                BJPsych Open
                BJO
                BJPsych Open
                Cambridge University Press (Cambridge, UK )
                2056-4724
                May 2018
                19 April 2018
                : 4
                : 3
                : 95-105
                Affiliations
                [1]Faculty of Medicine, Departments of Psychiatry & Community Health Sciences, Institute for Child and Maternal Health, University of Calgary , Alberta, Canada
                [2]Department of Oncology, University of Calgary , Alberta, Canada
                [3]Pediatric Oncology Experimental Therapeutics Investigators Consortium (POETIC) Laboratory, Department of Oncology, Cumming School of Medicine, University of Calgary , Alberta, Canada
                [4]Master of Biomedical Technology, University of Calgary , and Program Coordinator – Health, Genome Alberta, Canada
                [5]Department of Psychiatry, University of British Columbia , Vancouver, Canada
                [6]Visiting Professor at the Institute of Psychiatry, London, UK, Adjunct Professor at the University of St Louis , New York, USA, and President Association for the Improvement of Mental Health Programmes, Geneva, Switzerland.
                Author notes
                Correspondence: David Cawthorpe, Richmond Road Diagnostic and Treatment Center , 2nd Floor, RM 2603, 1820 Richmond Road S.W. Calgary, Alberta T2T 5C7, Canada. Email: cawthord@ 123456ucalgary.ca
                Article
                S2056472418000054 00005
                10.1192/bjo.2018.5
                6020283
                29971152
                bc67ba9c-3453-4744-b4ba-1701b90e2b3a
                © The Royal College of Psychiatrists 2018

                This is an Open Access article, distributed under the terms of the Creative Commons Attribution-NonCommercial-NoDerivatives licence ( http://creativecommons.org/licenses/by-nc-nd/4.0/), which permits non-commercial re-use, distribution, and reproduction in any medium, provided the original work is unaltered and is properly cited. The written permission of Cambridge University Press must be obtained for commercial re-use or in order to create a derivative work.

                History
                : 4 January 2018
                : 12 January 2018
                Page count
                Tables: 3, References: 46, Pages: 11
                Categories
                Papers

                temporal comorbidity,cancer,mental disorder,physician diagnosis,population,adult,psychiatric disorder

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