Evidence map›Paper›PMID 34348647›Full record

ArticleBMC cardiovascular disorders2021

The prevalence, relative risk factors and MTHFR C677T genotype of H type hypertension of the elderly hypertensives in Shanghai, China: a cross-section study : Prevalence of H type hypertension.

Xiao-Lin Qian, Hong Cao, Jun Zhang, Zhi-Hui Gu, Wei-Qin Tang, Lei Shen, Jia-Lu Hu, Zhi-Feng Yao, Lei Zhang, Min-Na Tang and 6 more

Open access · goldAbstract readMulticenter Study
In one paragraph

Article in BMC cardiovascular disorders, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed
2.7field-weighted citation impact, top 9% 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

20 citing papers in PubMed, 29 citations in OpenAlex.

  1. Review
  2. Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Association betweenPeerJ · 2025
    Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. [Rate and characteristics of H-type hypertension in Chinese hypertensive population and comparison with American population].Beijing da xue xue bao. Yi xue ban = Journal of Peking University. Health sciences · 2022
    Observational
  19. Article
  20. [Association betweenZhongguo dang dai er ke za zhi = Chinese journal of contemporary pediatrics · 2022
    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

16 authors at 5 institutions in 2 countries.

Xiao-Lin QianDepartment of Cardiology, QingPu Branch of Zhongshan Hospital Affiliated to Fudan University, QingPu District Central Hospital Shanghai, Shanghai, China.
Hong CaoDepartment of Cardiology, QingPu District Jinze Community Health Center, Shanghai, China.
Jun ZhangDepartment of Cardiology, QingPu District Xujing Community Health Center, Shanghai, China.
Zhi-Hui GuDepartment of Cardiology, QingPu District Zhujiajiao Community Health Center, Shanghai, China.
Wei-Qin TangDepartment of Cardiology, QingPu District Xianghuaqiao Community Health Center, Shanghai, China.
Lei ShenDepartment of Cardiology, QingPu District Yingpu Community Health Center, Shanghai, China.
Jia-Lu HuDepartment of Cardiology, Shanghai Institute of Cardiovascular Disease and Zhongshan Hospital Fudan University, Shanghai, China.
Zhi-Feng YaoDepartment of Cardiology, Shanghai Institute of Cardiovascular Disease and Zhongshan Hospital Fudan University, Shanghai, China.
Lei ZhangDepartment of Cardiology, Shanghai Institute of Cardiovascular Disease and Zhongshan Hospital Fudan University, Shanghai, China.
Min-Na TangDepartment of Cardiology, Shanghai Institute of Cardiovascular Disease and Zhongshan Hospital Fudan University, Shanghai, China.
Xu-Cheng LvDepartment of Cardiology, Shanghai Institute of Cardiovascular Disease and Zhongshan Hospital Fudan University, Shanghai, China.
Jun ZhouDepartment of Cardiology, Shanghai Institute of Cardiovascular Disease and Zhongshan Hospital Fudan University, Shanghai, China.
Xue-Juan JinDepartment of Cardiology, Shanghai Institute of Cardiovascular Disease and Zhongshan Hospital Fudan University, Shanghai, China.
Bin Hong *Department of Cardiology, Shanghai Zhujiajiao People's Hospital, Shanghai, China. qingpuzhongxin@163.com.
Zhao-Qiang Cui *Department of Cardiology, Shanghai Institute of Cardiovascular Disease and Zhongshan Hospital Fudan University, Shanghai, China. zhaoq_cui@163.com.
Jun-Bo Ge *Department of Cardiology, Shanghai Institute of Cardiovascular Disease and Zhongshan Hospital Fudan University, Shanghai, China. ge.junbo2@zs-hospital.sh.cn.
Community Health Center · USFudan University · CNThe First Affiliated Hospital, Sun Yat-sen University · CNSun Yat-sen University · CNZhongshan Hospital · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundH type hypertension is defined as homocysteine (Hcy) ≥ 10 μmol/L in combination with primary hypertension. Studies demonstrated that the existence of hyperhomocysteine (HHcy) in hypertensive exacerbates the poor outcome of cardiocerebral incidents. This study was to investigate the current epidemic situation of H type hypertension and determine the risk factors in order to find intervention targets for H type hypertensives.

methodsWe conducted a cross-sectional study using cluster sampling design in Shanghai, China from July 2019 and April 2020. 23,652 patients with primary hypertension were enrolled in this study. Their medical information was recorded, and the level of Hcy concentrations and methylenetetrahydrofolate reductase (MTHFR) C677T polymorphisms were detected.

resultsIn total, 22,731 of 23,652 patients were recorded. The mean age was 68.9 ± 8.6 y and 43% were men. 80.0% of the enrolled patients had H type hypertension. The frequency of allele T was 40.9%, and the proportions of the CC, CT, and TT genotypes were 36.1%, 46.0%, and 17.9%, respectively. Compared with the TT genotype, the plasma Hcy concentration levels were lower in patients with the CC/CT genotype (18.96 ± 13.48 μmol/L vs. 13.62 ± 5.20/14.28 ± 5.36, F = 75.04, p < 0.01). The risk for H type hypertension was higher in elderly people. Men had ~ 5.55-fold odds of H type hypertension compared with women. Patients with CT genotype and TT genotype had ~ 1.36- and ~ 2.76-fold odds of H type hypertension compared with those with CC genotype, respectively. Smoking and diabetes were not significantly associated with H type hypertension.

conclusionsThe prevalence of H type hypertension in patients with primary hypertension was 80.0%, which was higher than the 75% found in prior report in China. Age, gender, and MTHFR C677T polymorphisms rather than smoking and diabetes were independently associated with H type hypertension.

Indexed as

GenotypeAdultAgedAged, 80 and overChinaCross-Sectional StudiesFemaleHomocysteineHumansHyperhomocysteinemiaHypertensionMaleMethylenetetrahydrofolate Reductase (NADPH2)Middle AgedPolymorphism, GeneticPrevalenceHomocysteineMethylenetetrahydrofolate Reductase (NADPH2)MTHFR protein, humanH type hypertensionHyperhomocysteinemiaMTHFR C677TPrevalenceRisk factors

Identifiers

PMID34348647
PMCPMC8336333
OpenAlexW3187523064

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.