Evidence map›Paper›PMID 34675297›Full record

Trial reportScientific reports2021

Influence of red blood cell indices on HbA1c performance in detecting dysglycaemia in a Singapore preconception cohort study.

See Ling Loy, Jinjie Lin, Yin Bun Cheung, Aravind Venkatesh Sreedharan, Xinyi Chin, Keith M Godfrey, Kok Hian Tan, Lynette Pei-Chi Shek, Yap Seng Chong, Melvin Khee-Shing Leow and 6 more

Open access · goldAbstract readClinical Trial
In one paragraph

Trial report in Scientific reports, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
0.9field-weighted citation impact, top 25% 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

2 citing papers in PubMed, 7 citations in OpenAlex.

  1. Article
  2. Anti-Diabetic Effects of Ethanol Extract fromFoods (Basel, Switzerland) · 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 8 institutions in 3 countries.

See Ling Loy *Department of Reproductive Medicine, KK Women's and Children's Hospital, Singapore, 229899, Singapore. loyseeling@duke-nus.edu.sg.
Jinjie Lin *Department of Paediatrics, KK Women's and Children's Hospital, Singapore, 229899, Singapore.
Yin Bun CheungProgram in Health Services and Systems Research and Center for Quantitative Medicine, Duke-NUS Medical School, Singapore, 169857, Singapore.
Aravind Venkatesh SreedharanDepartment of Paediatrics, KK Women's and Children's Hospital, Singapore, 229899, Singapore.
Xinyi ChinDuke-NUS Medical School, Singapore, 169857, Singapore.
Keith M GodfreyMedical Research Council Lifecourse Epidemiology Unit, University of Southampton, Southampton, SO16 6YD, UK.
Kok Hian TanDuke-NUS Medical School, Singapore, 169857, Singapore.
Lynette Pei-Chi ShekSingapore Institute for Clinical Sciences, Agency for Science, Technology and Research (A*STAR), Singapore, 117609, Singapore.
Yap Seng ChongSingapore Institute for Clinical Sciences, Agency for Science, Technology and Research (A*STAR), Singapore, 117609, Singapore.
Melvin Khee-Shing LeowSingapore Institute for Clinical Sciences, Agency for Science, Technology and Research (A*STAR), Singapore, 117609, Singapore.
Chin Meng KhooCardiovascular and Metabolic Disorder Programme, Duke-NUS Medical School, Singapore, 169857, Singapore.
Yung Seng LeeSingapore Institute for Clinical Sciences, Agency for Science, Technology and Research (A*STAR), Singapore, 117609, Singapore.
Shiao-Yng ChanSingapore Institute for Clinical Sciences, Agency for Science, Technology and Research (A*STAR), Singapore, 117609, Singapore.
Ngee LekDuke-NUS Medical School, Singapore, 169857, Singapore.
Jerry Kok Yen ChanDepartment of Reproductive Medicine, KK Women's and Children's Hospital, Singapore, 229899, Singapore.
Fabian YapDuke-NUS Medical School, Singapore, 169857, Singapore. fabian.yap.k.p@singhealth.com.sg.
KK Women's and Children's Hospital · SGDuke-NUS Medical School · SGNational University of Singapore · SGAgency for Science, Technology and Research · SGNational Institute for Health Research · GBNational University Hospital · SGSingapore Institute for Clinical Sciences · SGTan Tock Seng Hospital · SG

Funding

British Heart Foundation RG/15/17/3174Department of Health IS-BRC-1215-20004Department of Health NF-SI-0515-10042Medical Research Council MC_PC_21000Medical Research Council MC_PC_21001Medical Research Council MC_PC_21003Medical Research Council MC_UP_A620_1014Medical Research Council MC_UU_12011/4
6 · The paper itself

Abstract

Abnormalities of red blood cell (RBC) indices may affect glycated haemoglobin (HbA1c) levels. We assessed the influence of haemoglobin (Hb) and mean corpuscular volume (MCV) on the performance of HbA1c in detecting dysglycaemia among reproductive aged women planning to conceive. Women aged 18-45 years (n = 985) were classified as normal (12 ≤ Hb ≤ 16 g/dL and 80 ≤ MCV ≤ 100 fL) and abnormal (Hb < 12 g/dL and/or MCV < 80 fL). The Area Under the Receiver Operating Characteristic (AUROC) curve was used to determine the performance of HbA1c in detecting dysglycaemic status (prediabetes and diabetes). There were 771 (78.3%) women with normal RBC indices. The AUROCs for the normal and abnormal groups were 0.75 (95% confidence interval 0.69, 0.81) and 0.80 (0.70, 0.90), respectively, and were not statistically different from one another [difference 0.04 (- 0.16, 0.08)]. Further stratification by ethnicity showed no difference between the two groups among Chinese and Indian women. However, Malay women with normal RBC indices displayed lower AUROC compared to those with abnormal RBC indices (0.71 (0.55, 0.87) vs. 0.98 (0.93, 1.00), p = 0.002). The results suggest that the performance of HbA1c in detecting dysglycaemia was not influenced by abnormal RBC indices based on low Hb and/or low MCV. However, there may be ethnic variations among them.

Indexed as

AdultBlood GlucoseDiabetes MellitusErythrocyte IndicesFemaleFertilizationGlycated HemoglobinHematologic TestsHumansMass ScreeningPrediabetic StateROC CurveSingaporeYoung AdultBlood GlucoseGlycated Hemoglobinhemoglobin A1c protein, human

Identifiers

PMID34675297
PMCPMC8531017
OpenAlexW3205932230

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.