Evidence map›Paper›PMID 31813379›Full record

SynthesisMilitary Medical Research2019

Sex-based differences in the prevalence of acute mountain sickness: a meta-analysis.

Yun-Peng Hou, Jia-Lin Wu, Chao Tan, Yu Chen, Rui Guo, Yong-Jun Luo

Open access · diamondAbstract readMeta-AnalysisReview
In one paragraph

Synthesis in Military Medical Research, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 33 papers.

0numbers the graph read from it
0cells of the map it votes in
33citing papers in PubMed
4.3field-weighted citation impact, top 5% 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

33 citing papers in PubMed, 63 citations in OpenAlex.

  1. Trial
  2. Trial
  3. Review
  4. Article
  5. Altitude hypoxia and hypoxemia: pathogenesis and management.Signal transduction and targeted therapy · 2026
    Review
  6. Article
  7. Article
  8. Review
  9. Article
  10. Altitude illnesses.Nature reviews. Disease primers · 2024
    Review
  11. Review
  12. Review
  13. Article
  14. Article
  15. Article
  16. Article
  17. Review
  18. Observational
  19. Article
  20. Article
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

6 authors at 1 institution in 1 country.

Yun-Peng HouDepartment of Military Medical Geography, Army Medical Service Training Base, Army Medical University, Chongqing, 400038, China.
Jia-Lin WuDepartment of Military Medical Geography, Army Medical Service Training Base, Army Medical University, Chongqing, 400038, China.
Chao Tan
Yu ChenDepartment of Military Medical Geography, Army Medical Service Training Base, Army Medical University, Chongqing, 400038, China.
Rui GuoDepartment of Military Medical Geography, Army Medical Service Training Base, Army Medical University, Chongqing, 400038, China.
Yong-Jun LuoDepartment of Military Medical Geography, Army Medical Service Training Base, Army Medical University, Chongqing, 400038, China. 333333@163.com.
Army Medical University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundWhen lowlanders rapidly ascend to altitudes > 2500 m, they may develop acute mountain sickness (AMS). The individual susceptibility, ascending velocity, time spent at altitude, activity levels and altitude reached are considered risk factors for AMS. However, it is not clear whether sex is a risk factor. The results have been inconclusive. We conducted a meta-analysis to test whether there were sex-based differences in the prevalence of AMS using Lake Louise Scoring System.

methodsSystematic searches were performed in August 2019 in EMBASE, PubMed, and Web of Science for prospective studies with AMS data for men and women. The titles and abstracts were independently checked in the primary screening step, and the selected full-text articles were independently assessed in the secondary screening step by the two authors (YPH and JLW) based on pre-defined inclusion criteria. The meta-analysis was performed using by the STATA 14.1 software program. A random-effects model was employed.

resultsEighteen eligible prospective studies were included. A total of 7669 participants (2639 [34.4%] women) were tested. The results showed that there was a statistically significant higher prevalence rate of AMS in women than in men (RR = 1.24, 95%CI 1.09-1.41), regardless of age or race. Howerver, the heterogeneity was significant in the analysis (Tau

conclusionsAccording to this study, the statistically significant finding emerging from this study was that women have a higher prevalence of AMS. However, the authors could not exclude studies where patients were on acetazolamide. Our analysis provided a direction for future studies of the relationship of sex and the risk of AMS, such as the pathological mechanism and prevention research.

Indexed as

Sex FactorsAcute DiseaseAltitudeAltitude SicknessFemaleHumansMalePrevalenceRisk FactorsAcute mountain sicknessPrevalenceRisk factorsSex differences

Identifiers

PMID31813379
PMCPMC6900850
OpenAlexW2994172848

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.