Evidence map›Paper›PMID 37724706›Full record

ArticleJournal of clinical hypertension (Greenwich, Conn.)2024

Association between hemoglobin concentration and hypertension risk in native Tibetans at high altitude.

Xueting Liu, Changqiang Yang, Xin Zhang, Runyu Ye, Xinran Li, Zhipeng Zhang, Shanshan Jia, Lirong Sun, Qingtao Meng, Xiaoping Chen

Open access · diamondAbstract read
In one paragraph

Article in Journal of clinical hypertension (Greenwich, Conn.), 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
4.1field-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

15 citing papers in PubMed, 13 citations in OpenAlex.

  1. Trial
  2. Review
  3. [Sex-specific hemoglobin thresholds for oxygen saturation: A non-linear regression analysis based on Tibetan inpatients].Beijing da xue xue bao. Yi xue ban = Journal of Peking University. Health sciences · 2026
    Article
  4. Article
  5. Observational
  6. Article
  7. Review
  8. Review
  9. Article
  10. Article
  11. Review
  12. [Current Status and Prospects of Research on Altitude-Related Hypertension].Sichuan da xue xue bao. Yi xue ban = Journal of Sichuan University. Medical science edition · 2024
    Review
  13. Article
  14. Article
  15. 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

10 authors at 1 institution in 1 country.

Xueting LiuDepartment of Cardiology, West China Hospital of Sichuan University, Chengdu, China.
Changqiang YangDepartment of Cardiology, West China Hospital of Sichuan University, Chengdu, China.
Xin ZhangDepartment of Cardiology, West China Hospital of Sichuan University, Chengdu, China.
Runyu YeDepartment of Cardiology, West China Hospital of Sichuan University, Chengdu, China.
Xinran LiDepartment of Cardiology, West China Hospital of Sichuan University, Chengdu, China.
Zhipeng ZhangDepartment of Cardiology, West China Hospital of Sichuan University, Chengdu, China.
Shanshan JiaDepartment of Cardiology, West China Hospital of Sichuan University, Chengdu, China.
Lirong SunDepartment of Cardiology, West China Hospital of Sichuan University, Chengdu, China.
Qingtao MengDepartment of Cardiology, West China Hospital of Sichuan University, Chengdu, China.
Xiaoping ChenDepartment of Cardiology, West China Hospital of Sichuan University, Chengdu, China.ORCID 0000-0001-7714-3403
Sichuan University · CN

Funding

Medical Science and Technology Project of Health Commission of Sichuan Province 21PJ026National Natural Science Foundation of China 81970355
6 · The paper itself

Abstract

Previous studies examining the association between hemoglobin concentration and hypertension have yielded inconsistent results. There is still a lack of evidence regarding the association between hemoglobin concentration and hypertension risk in native Tibetans at high altitude. We performed this cross-sectional study in Luhuo County of Ganzi Tibetan Autonomous Prefecture (average altitude of 3500 m). In this study, we enrolled 1547 native Tibetans. The association between hemoglobin concentration and hypertension risk was examined by multivariate binary logistic regression and smooth curve fitting. Native Tibetans with hypertension had significantly higher hemoglobin concentrations than those without hypertension (165.9 ± 21.5 g/L vs. 157.7 ± 19.2 g/L, P < 0.001). An increase in hemoglobin concentration of 1 g/L was associated with hypertension (odds ratio [OR] 1.02, 95% confidence interval [CI] 1.01-1.02) after confounder adjustment. The highest hemoglobin concentration group (exceeding 173 g/L) was associated with an increased hypertension risk compared with the bottom quartile of hemoglobin concentration (OR 2.39, 95% CI 1.48-3.85). Hemoglobin concentration (per 1 g/L change) exceeding 176 g/L was significantly associated with an increased hypertension risk (OR 1.04, 95% CI 1.03-1.06). Additionally, high-altitude polycythemia significantly increased the hypertension risk compared with a normal hemoglobin concentration (OR 2.92, 95% CI 1.25-6.86). A similar result was observed for mild polycythemia (OR 1.74, 95% CI 1.29-2.34). In conclusion, hemoglobin concentration was associated with hypertension risk in native Tibetans. When the hemoglobin concentration exceeded a certain value (approximately 176 g/L), the risk of hypertension was significantly increased.

Indexed as

East Asian PeopleHypertensionPolycythemiaAltitudeCross-Sectional StudiesHemoglobinsHumansHemoglobinshemoglobin concentrationhigh altitudehypertensionnative Tibetanpolycythemia

Identifiers

PMID37724706
PMCPMC10795086
OpenAlexW4386845460

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.