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Journal of Perinatal Medicine

Official Journal of the World Association of Perinatal Medicine

Editor-in-Chief: Dudenhausen, MD, FRCOG, Joachim W.

Ed. by Bancalari, Eduardo / Chappelle, Joseph / Chervenak, Frank A. / D'Addario , Vincenzo / Genc, Mehmet R. / Greenough, Anne / Grunebaum, Amos / Konje, Justin C. / Kurjak M.D., Asim / Romero, Roberto / Zalud, MD PhD, Ivica


IMPACT FACTOR 2018: 1.361
5-year IMPACT FACTOR: 1.578

CiteScore 2018: 1.29

SCImago Journal Rank (SJR) 2018: 0.522
Source Normalized Impact per Paper (SNIP) 2018: 0.602

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1619-3997
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Volume 36, Issue 2

Issues

Impact of high maternal hemoglobin at first antenatal visit on pregnancy outcomes: a cohort study

Chadakarn Phaloprakarn
  • 1Department of Obstetrics and Gynecology, Bangkok Metropolitan Administration Medical College and Vajira Hospital, Bangkok, Thailand
  • Other articles by this author:
  • De Gruyter OnlineGoogle Scholar
/ Siriwan Tangjitgamol
  • 2Department of Obstetrics and Gynecology, Bangkok Metropolitan Administration Medical College and Vajira Hospital, Bangkok, Thailand
  • Other articles by this author:
  • De Gruyter OnlineGoogle Scholar
Published Online: 2008-03-10 | DOI: https://doi.org/10.1515/JPM.2008.018

Abstract

Aim: To determine whether high maternal hemoglobin (Hb) at first antenatal visit is associated with adverse pregnancy outcomes.

Methods: A retrospective cohort study was conducted in 920 singleton pregnancies who started their antenatal booking in the first trimester (≤14 weeks' gestation). Women with first-visit high Hb levels (>125 g/L) were matched 1:1 with those who had normal Hb values (110–124 g/L) according to age group and parity. Adverse pregnancy outcomes including preeclampsia, gestational diabetes mellitus (GDM), preterm delivery, low birth weight (LBW), and small for gestational age (SGA) infants between both groups were compared.

Results: Complete obstetric records of 426 and 448 women who had high and normal Hb levels, respectively, were studied. By uni- and multivariable analyses, women with high Hb levels had significantly higher rates of preeclampsia and GDM than those with normal Hb levels; their adjusted relative risks were 3.8 (95% confidence interval [CI]; 2.0, 7.1) and 3.3 (95% CI; 1.8, 6.0), respectively. Rates of preterm delivery, low birth weight, and small for gestational age infants between the two groups were not significantly different.

Conclusion: Our findings suggest that high Hb in the first trimester is associated with subsequent preeclampsia and GDM.

Keywords: Antenatal visit; hemoglobin; pregnancy outcomes

About the article

Corresponding author: Chadakarn Phaloprakarn, MD Department of Obstetrics and Gynecology Bangkok Metropolitan Administration Medical College and Vajira Hospital 681 Samsen Road Dusit, Bangkok 10300 Thailand Tel.: +66 2244 3414 Fax: +66 2243 7907


Received: 2007-06-19

Revised: 2007-11-18

Accepted: 2007-11-24

Published Online: 2008-03-10

Published in Print: 2008-03-01


Citation Information: Journal of Perinatal Medicine, Volume 36, Issue 2, Pages 115–119, ISSN (Online) 16193997, ISSN (Print) 03005577, DOI: https://doi.org/10.1515/JPM.2008.018.

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