Evidence map›Paper›PMID 33543804›Full record

ArticleJournal of clinical laboratory analysis2021

Changes in levels of coagulation parameters in different trimesters among Chinese pregnant women.

Wengong Wang, Kai Long, Fenglin Deng, Wei Ye, Pingwei Zhang, Xi Chen, Weiguo Dong, Ping Zheng, Xinxin Zhang, Tianyu Yang and 2 more

Open access · goldAbstract read
In one paragraph

Article in Journal of clinical laboratory analysis, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
3.1field-weighted citation impact, top 8% 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

16 citing papers in PubMed, 32 citations in OpenAlex.

  1. Article
  2. ClotProBMC pregnancy and childbirth · 2026
    Observational
  3. Baseline values for QuantraBMC pregnancy and childbirth · 2025
    Observational
  4. Article
  5. Article
  6. Maternal and fetal outcomes in 151 cases of thrombocytopenia in pregnancy.Frontiers in cell and developmental biology · 2025
    Article
  7. Proteomic Profiles of Maternal Plasma Extracellular Vesicles for Prediction of Preeclampsia.American journal of reproductive immunology (New York, N.Y. : 1989) · 2024
    Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Laboratory Testing of Hemostasis in Pregnancy: A Brief Overview.Methods in molecular biology (Clifton, N.J.) · 2023
    Review
  13. Article
  14. Changes of new coagulation markers in healthy pregnant women and establishment of reference intervals in Changsha.Zhong nan da xue xue bao. Yi xue ban = Journal of Central South University. Medical sciences · 2022
    Article
  15. Article
  16. Establishment Trimester-Specific Reference Intervals of Anticoagulation and Fibrinolysis Indicators in Healthy Pregnant Women in Beijing, China.Clinical and applied thrombosis/hemostasis : official journal of the International Academy of Clinical and Applied Thrombosis/Hemostasis
    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

12 authors at 2 institutions in 1 country.

Wengong WangDepartment of Laboratory Medicine, Hubei Provincial Hospital of Integrated Chinese and Western Medicine, Wuhan, China.
Kai LongShenzhen Mindray Bio-Medical Electronic Co, Ltd, Shenzhen, China.
Fenglin DengDepartment of laboratory medicine, Wuhan Petrochemical Hospital, Wuhan, China.
Wei YeDepartment of Laboratory Medicine, Hubei Provincial Hospital of Integrated Chinese and Western Medicine, Wuhan, China.
Pingwei ZhangDepartment of Laboratory Medicine, Hubei Provincial Hospital of Integrated Chinese and Western Medicine, Wuhan, China.
Xi ChenDepartment of Laboratory Medicine, Hubei Provincial Hospital of Integrated Chinese and Western Medicine, Wuhan, China.
Weiguo DongDepartment of Laboratory Medicine, Hubei Provincial Hospital of Integrated Chinese and Western Medicine, Wuhan, China.
Ping ZhengDepartment of Laboratory Medicine, Hubei Provincial Hospital of Integrated Chinese and Western Medicine, Wuhan, China.
Xinxin ZhangDepartment of Laboratory Medicine, Hubei Provincial Hospital of Integrated Chinese and Western Medicine, Wuhan, China.
Tianyu YangDepartment of Laboratory Medicine, Hubei Provincial Hospital of Integrated Chinese and Western Medicine, Wuhan, China.
Weihong ChenDepartment of Laboratory Medicine, Hubei Provincial Hospital of Integrated Chinese and Western Medicine, Wuhan, China.
Kai YangDepartment of Laboratory Medicine, Hubei Provincial Hospital of Integrated Chinese and Western Medicine, Wuhan, China.ORCID https://orcid.org/0000-0002-4723-4491
Integrated Chinese Medicine (China) · CNMindray (China) · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThis article is to explore changes in levels of coagulation parameters in different trimesters among healthy pregnant women in China.

methodsA total of 760 eligible women were enrolled (first-trimester group: n = 183, second-trimester group: n = 183, third-trimester group: n = 263, non-pregnant group: n = 131). Seven parameters including prothrombin time (PT), activated partial thromboplastin time (APTT), thrombin time (TT), fibrinogen (FIB), D-dimer (DD), fibrinogen degradation products (FDP), and antithrombin III (ATIII), of all participants were collected. The non-parametric 2.5th-97.5th percentiles reference intervals were calculated for each parameter.

resultsThe reference intervals for FIB, PT, APTT, TT, FDP, DD, and ATIII at first trimester were 2.11-4.32 g/L, 10.90-13.85 s, 24.60-39.28 s, 12.95-15.88 s, 0.04-2.55 μg/mL, 0.03-1.15 μg/mL, and 75.57%-125.31%, respectively. The reference intervals at second trimester were 2.31-4.77 g/L, 9.70-12.64 s, 24.16-35.43 s, 12.95-15.88 s, 0.15-7.40 μg/mL, 0.08-2.13 μg/mL, and 74.35%-119.28%, respectively. For the third-trimester, the intervals were 2.39-4.96 g/L, 9.20-11.95 s, 23.90-35.51 s, 13.41-18.00 s, 0.55-13.43 μg/mL, 0.15-3.60 μg/mL, and 71.61%-118.29%, respectively. The third-trimester group showed decreased PT, APTT, and ATIII and increased FIB, TT, DD and FDP as compared with the other groups.

conclusionIn this study, level changes of coagulation parameters in different trimesters were observed. And the ranges for coagulation parameters were presented, which may provide some reference for clinicians to more accurately monitor the coagulation and fibrinolytic system in pregnant women.

Indexed as

Asian PeopleBlood CoagulationPregnant PeopleAdultFemaleHumansPregnancyPregnancy TrimestersReference ValuesChinese pregnant womencoagulation parametersreference intervals

Identifiers

PMID33543804
PMCPMC8059730
OpenAlexW3127359352

What OpenQuestion holds

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Registered trials

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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.