Low potassium level during the first half of pregnancy is associated with lower risk for the development of gestational diabetes mellitus and severe pre-eclampsia

Talya Wolak, Ruslan Sergienko, Arnon Wiznitzer, Lior Ben Shlush, Esther Paran, Eyal Sheiner

Research output: Contribution to journalArticlepeer-review

Abstract

Objective. To examine the association between potassium level during the first half of pregnancy and the development of gestational diabetes mellitus (GDM) and hypertensive disorders in the second half of the pregnancy. Methods. The study population included all registered births between the years 2001-2007. The potassium levels during the first half of pregnancy were sorted by the following groups: K<3.5 mEq/l; K = 3.5-3.99mEq/l; and K≥4mEq/l. The linear by linear χ2-test was used to determine the association between potassium level during the beginning of pregnancy and pregnancy complications. Results. The study population included 8114 deliveries. A significant linear association was documented between potassium level in the first half of the pregnancy and the prevalence of GDM in the second half of the pregnancy: 6.3 in the K<3.5mEq/l group, 6.6 in the K = 3.5-3.99mEq/l group and 8.2 in the K>4mEq/l group; (p = 0.008). A statistically significant for lower rates of severe pre-eclampsia was noted between the groups: 0.4 in the K<3.5mEq/l group, 0.9 in the K3.53.99mEq/l group, 1.3 in the K = 4.0-4.99mEq/l group and 1.5 in the K≥5mEq/l group, (p = 0.027). Indeed, K>5mEq/l was noted as a significant risk factor for both, severe pre-eclampsia and for GDM. Using two multiple logistic regression models controlling for maternal age, potassium level was noted as an independent risk factor for both GDM and severe pre-eclampsia. Conclusions. High potassium levels during the first half of pregnancy are associated with higher risk for the development of GDM and severe pre-eclampsia.

Original languageEnglish
Pages (from-to)994-998
Number of pages5
JournalJournal of Maternal-Fetal and Neonatal Medicine
Volume23
Issue number9
DOIs
StatePublished - Sep 2010
Externally publishedYes

Keywords

  • Potassium
  • gestational diabetes mellitus
  • severe pre-eclampsia

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