Evidence map›Paper›PMID 25015770›Full record

SynthesisJournal of cancer research and clinical oncology2015

Alzheimer disease and cancer risk: a meta-analysis.

Hai-bin Shi, Bo Tang, Yao-Wen Liu, Xue-Feng Wang, Guo-Jun Chen

Erratum issuedAbstract readMeta-Analysis
In one paragraph

Synthesis in Journal of cancer research and clinical oncology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 45 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
45citing papers in PubMed, 1 pooled it
–field-weighted citation impact
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

45 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Article
  3. Review
  4. The GPCR Connection: Linking Alzheimer's Disease and Glioblastoma.Journal of cellular and molecular medicine · 2026
    Review
  5. Article
  6. Article
  7. Article
  8. Review
  9. Review
  10. Alzheimer's Disease and Cancer: Common Targets.Mini reviews in medicinal chemistry · 2024
    Review
  11. Article
  12. Article
  13. Article
  14. Review
  15. Review
  16. Article
  17. Article
  18. Article
  19. Review
  20. Review
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

5 authors.

Hai-bin ShiDepartment of Neurology, Chongqing Key Laboratory of Neurology, The First Affiliated Hospital of Chongqing Medical University, 1 Youyi Road, Yuzhong District, Chongqing, 400016, China.
Bo Tang
Yao-Wen Liu
Xue-Feng Wang
Guo-Jun Chen

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeAlzheimer disease (AD) and cancer are seemingly two opposite ends of one spectrum. Studies have suggested that patients with AD showed a reduced risk of cancer and vice versa. However, available evidences are not conclusive. So we conducted a meta-analysis using published literatures to systematically examine cancer risk in AD patients.

methodsA PubMed, EMBASE, and Web of Science search were conducted in May 2014. Pooled risk ratios (RRs) with their corresponding 95 % confidence intervals (CIs) were obtained using random-effects meta-analysis. We tested for publication bias and heterogeneity, and stratified for study characteristics, smoking-related cancers versus nonsmoking-related cancers, and site-specific cancers.

resultsNine studies were included in this meta-analysis. Compared with controls, the pooled RR of cancer in AD patients was 0.55 (95 % CI 0.41-0.75), with significant heterogeneity among these studies (P < 0.001, I(2) = 83.5 %). The reduced cancer risk was more substantial when we restricted analyses to cohort studies, studies with adjusted estimates, studies defining AD by generally accepted criteria, and studies with longer length of follow-up. In sub-analyses for site-specific cancers, only lung cancer showed significant decreased risk (RR 0.72; 95 % CI 0.56-0.91). We did not find significant publication bias (P = 0.251 for Begg and Mazumdar's test and P = 0.143 for Egger's regression asymmetry test).

conclusionThese results support an association between AD and decreased cancer risk.

Indexed as

Alzheimer DiseaseCohort StudiesHumansNeoplasmsPrognosis

Identifiers

PMID25015770
PMCPMC11823988

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.