Evidence map›Paper›PMID 32358572›Full record

ArticleNPJ schizophrenia2020

The clinical course of schizophrenia in women and men-a nation-wide cohort study.

Iris E Sommer, Jari Tiihonen, Anouk van Mourik, Antti Tanskanen, Heidi Taipale

Open access · goldAbstract read
In one paragraph

Article in NPJ schizophrenia, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 84 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
84citing papers in PubMed, 3 pooled it
14.2field-weighted citation impact, top 1% 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

84 citing papers in PubMed, 3 syntheses or guidelines pooled it, 170 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Proportion and predictors of remission and recovery in first-episode psychosis: Systematic review and meta-analysis.European psychiatry : the journal of the Association of European Psychiatrists · 2021
    Pooled it
  4. Trial
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Review
  19. Review
  20. Article

24 more citing papers are in PubMed but not listed here.

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

5 authors at 5 institutions in 3 countries.

Iris E SommerRijksuniversiteit Groningen (RUG), University Medical Center Groningen (UMCG), Department of Biomedical Sciences of Cells and Systems, Groningen, Netherlands. i.e.c.sommer@umcg.nl.
Jari TiihonenDepartment of Clinical Neuroscience, Karolinska Institutet, Stockholm, Sweden.
Anouk van MourikRijksuniversiteit Groningen (RUG), University Medical Center Groningen (UMCG), Department of Biomedical Sciences of Cells and Systems, Groningen, Netherlands.
Antti TanskanenDepartment of Clinical Neuroscience, Karolinska Institutet, Stockholm, Sweden.
Heidi TaipaleDepartment of Clinical Neuroscience, Karolinska Institutet, Stockholm, Sweden.
Karolinska Institutet · SENiuvanniemi Hospital · FIUniversity Medical Center Groningen · NLUniversity of Eastern Finland · FIUniversity of Groningen · NL

Funding

Academy of Finland (Suomen Akatemia) 315969
6 · The paper itself

Abstract

Gender differences in schizophrenia have been reported in different aspect of the course of disease and may urge special clinical interventions for female patients. Current literature provides insufficient information to design guidelines for treating women with schizophrenia. We aim to quantify the clinical course of schizophrenia in men and women on premorbid hospitalizations and prescription drugs, age at diagnosis, pharmacological treatment, comorbidity, number of re-hospitalizations, and mortality. Our nationwide cohort study included all patients admitted for the first time to hospital during 2000-2014 for schizophrenia or schizo-affective disorder in Finland. Gender differences were compared with logistic regression, by calculating incidence rates, and mortality was assessed with Cox proportional hazard model. We included 7142 women and 9006 men with schizophrenia/schizo-affective disorder and found that both women (71%) and men (70%) had often been hospitalized for another psychiatric disorder in the 5 years before diagnosis. In women, the last psychiatric hospitalization before schizophrenia/schizo-affective diagnosis was often for mood disorders (62%, OR 2.56, 95% CI 2.28-2.87). Men were diagnosed earlier (mean 34.4 [SD12.6] vs. 38.2 [SD 13.8]) with peak incidence around 22, while incidence in women declining only slowly between age 18 and 65. During ten years follow-up, 69.5% of both genders needed at least one re-hospitalization, with slightly more hospitalizations in women. Women were less often prescribed clozapine or long-acting antipsychotics. Mortality was lower in women (HR = 0.54, 95% CI 0.50-0.60), with fewer suicide and cardiovascular deaths, but more cancer deaths. These results suggest a diagnostic delay for women, which might be shortened by screening women aged 20-65 participating in affective disorder programs. As number of hospitalizations is not lower for women, clinicians should take care not to undertreat women with schizophrenia.

Identifiers

PMID32358572
PMCPMC7195359
OpenAlexW3023762651

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

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.