Evidence map›Paper›PMID 22282455›Full record

ArticleSchizophrenia bulletin2013

Second-generation antipsychotic medications and risk of pneumonia in schizophrenia.

Chian-Jue Kuo, Shu-Yu Yang, Ya-Tang Liao, Wei J Chen, Wen-Chung Lee, Wen-Yi Shau, Yao-Tung Chang, Shang-Ying Tsai, Chiao-Chicy Chen

Open access · bronzeAbstract read
In one paragraph

Article in Schizophrenia bulletin, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 59 papers, 5 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
59citing papers in PubMed, 5 pooled it
4.2field-weighted citation impact, top 6% 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

59 citing papers in PubMed, 5 syntheses or guidelines pooled it, 161 citations in OpenAlex.

  1. Pooled it
  2. Schizophrenia.Deutsches Arzteblatt international · 2020
    Pooled it
  3. Pooled it
  4. Pooled it
  5. Pooled it
  6. Article
  7. COPD and Schizophrenia.Chronic obstructive pulmonary diseases (Miami, Fla.) · 2025
    Article
  8. Observational
  9. Review
  10. Article
  11. Article
  12. Article
  13. Review
  14. Article
  15. Article
  16. Article
  17. Article
  18. Review
  19. Quetiapine-related acute lung injury: A case report.World journal of clinical cases · 2022
    Article
  20. COVID-related hospitalization, intensive care treatment, and all-cause mortality in patients with psychosis and treated with clozapine.European neuropsychopharmacology : the journal of the European College of Neuropsychopharmacology · 2022
    Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

9 authors at 4 institutions in 1 country.

Chian-Jue KuoTaipei City Psychiatric Center, Taipei City Hospital, and Graduate Institute of EpidemiologyandPreventive Medicine, College of Public Health, National Taiwan University, 309 Sung-Te Road, Taipei 110, Taiwan.
Shu-Yu Yang
Ya-Tang Liao
Wei J Chen
Wen-Chung Lee
Wen-Yi Shau
Yao-Tung Chang
Shang-Ying Tsai
Chiao-Chicy Chen
Taipei City Hospital · TWNational Taiwan University · TWDevelopment Center for Biotechnology · TWTaipei Medical University · TW

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

This study assessed the association between second-generation antipsychotic medications and risk of pneumonia requiring hospitalization in patients with schizophrenia because the evidence is limited in the population. We enrolled a nationwide cohort of 33,024 inpatients with schizophrenia ranged in age from 18 to 65 years, who were derived from the National Health Insurance Research Database in Taiwan from 2000 to 2008. Cases (n = 1741) were defined as patients who developed pneumonia after their first psychiatric admissions. Risk set sampling was used to match each case with 4 controls by age, sex, and the year of the first admission based on nested case-control study. Antipsychotic exposure was categorized by type, duration, and daily dose, and the association between exposure and pneumonia was assessed using conditional logistic regression. We found that current use of clozapine (adjusted risk ratio = 3.18, 95% CI: 2.62-3.86, P < .001) was associated with a dose-dependent increase in the risk. Although quetiapine, olanzapine, zotepine, and risperidone were associated with increased risk, there was no clear dose-dependent relationship. Amisulpride was associated with a low risk of pneumonia. The use of clozapine combined with another drug (olanzapine, quetiapine, zotepine, risperidone, or amisulpride), as assessed separately, was associated with increased risk for pneumonia. In addition, with the exception of amisulpride, each drug was associated with increased risk for pneumonia at the beginning of treatment. Clinicians who prescribe clozapine to patients with schizophrenia should closely monitor them for pneumonia, particularly at the start of therapy and when clozapine is combined with other antipsychotics.

Indexed as

AdultAmisulprideAntipsychotic AgentsBenzodiazepinesCase-Control StudiesClozapineCohort StudiesDibenzothiazepinesDibenzothiepinsDrug Therapy, CombinationFemaleHumansLogistic ModelsMaleMiddle AgedOlanzapineAmisulprideAntipsychotic AgentsBenzodiazepinesClozapineDibenzothiazepinesDibenzothiepinsOlanzapineQuetiapine FumarateRisperidoneSulpiridezotepine

Identifiers

PMID22282455
PMCPMC3627761
OpenAlexW2120839494

What OpenQuestion holds

Textmetadata
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.