Evidence map›Paper›PMID 30820700›Full record

ArticleInternational journal of bipolar disorders2019

Mortality rate trends in patients diagnosed with schizophrenia or bipolar disorder: a nationwide study with 20 years of follow-up.

Line Hosbond Lomholt, Diana Vincens Andersen, Christina Sejrsgaard-Jacobsen, Cagla Margit Øzdemir, Claus Graff, Ole Schjerning, Svend Eggert Jensen, Sune Puggard Vogt Straszek, Rasmus W Licht, Simon Grøntved and 1 more

Open access · goldAbstract read
In one paragraph

Article in International journal of bipolar disorders, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 47 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
47citing papers in PubMed, 4 pooled it
8.2field-weighted citation impact, top 2% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

47 citing papers in PubMed, 4 syntheses or guidelines pooled it, 105 citations in OpenAlex.

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  3. Bipolar disorder and the risk for stroke incidence and mortality: a meta-analysis.Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology · 2022
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

11 authors at 2 institutions in 1 country.

Line Hosbond LomholtDepartment of Clinical Medicine, Aalborg University, Aalborg, Denmark.
Diana Vincens AndersenDepartment of Clinical Medicine, Aalborg University, Aalborg, Denmark.
Christina Sejrsgaard-JacobsenDepartment of Clinical Medicine, Aalborg University, Aalborg, Denmark.
Cagla Margit ØzdemirDepartment of Clinical Medicine, Aalborg University, Aalborg, Denmark.
Claus GraffDepartment of Health Science and Technology, Aalborg University, Aalborg, Denmark.
Ole SchjerningDepartment of Psychiatry, Aalborg University Hospital, Mølleparkvej 10, 9000, Aalborg, Denmark.
Svend Eggert JensenDepartment of Clinical Medicine, Aalborg University, Aalborg, Denmark.
Sune Puggard Vogt StraszekDepartment of Clinical Medicine, Aalborg University, Aalborg, Denmark.
Rasmus W LichtDepartment of Clinical Medicine, Aalborg University, Aalborg, Denmark.
Simon GrøntvedDepartment of Psychiatry, Aalborg University Hospital, Mølleparkvej 10, 9000, Aalborg, Denmark.
René Ernst NielsenDepartment of Clinical Medicine, Aalborg University, Aalborg, Denmark. ren@rn.dk.ORCID http://orcid.org/0000-0002-7982-6352
Aalborg University Hospital · DKAalborg University · DK

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundPatients with severe mental illness (SMI) have a reduced life expectancy of one to two decades as compared to the general population, with most years of life lost due to somatic diseases. Most previous studies on disorders constituting SMI, e.g. schizophrenia and bipolar disorder, have investigated the disorders separately and hence not compared the disorders in terms of mortality rates relative to the background population.

methodsA register-based cohort study including the entire Danish population comparing mortality rates relative to the background population, controlling for age and sex, i.e. standardized mortality ratios (SMRs) in patients diagnosed with schizophrenia with those in patients diagnosed with bipolar disorder, during the study period from 1995 to 2014.

resultsThe SMR of patients with SMI was significantly higher than one for each calendar year in the study period with an overall SMR of 4.58, 95% CI (4.48-4.69) in patients diagnosed with schizophrenia (n = 38,500) and of 2.57 (95% CI 2.49-2.65) in patients diagnosed with bipolar disorder (n = 23,092). When investigating time trends in SMR for schizophrenia and for bipolar disorder, respectively, an increase in SMR over time was shown with a mean increase of 0.03 per year for schizophrenia and 0.02 for bipolar disorder (p < 0.01 for both disorders). The ratio between SMR for schizophrenia and SMR for bipolar disorder for each calendar year over the study period was constant (p = 0.756).

conclusionsIncreasing SMRs over the last 20 years were found for both patients diagnosed with bipolar disorder and patients diagnosed with schizophrenia. Despite clear differences between the two disorders regarding SMRs, the increases in SMR over time were similar, which could suggest similar underlying factors influencing mortality rates in both disorders.

Indexed as

Bipolar disorderEpidemiologyMortalitySchizophrenia

Identifiers

PMID30820700
PMCPMC6395457
OpenAlexW2929421159

What OpenQuestion holds

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.