|A Cohort Study:The Relation Between The Incidence Rate of Second and Third Trimester Hemoglobin And The Incidence of Preeclampsia and Gestational Diabetes|
|Majid Rostami Mogaddam1, Nastaran Safavi Arbedili2, Nourossadat Kariman3|
|1Department of Dermatology, Emam Khomeyni Hospital, Ardabil University of Medical Sciences, Ardabil, Iran
2Department of Midwifery, Ardabil Branch. Islamic Azad University, Ardabil, Iran
3Department of Nursing and Midwifery Faculty, ShahidBeheshti University of Medical Sciences, Tehran, Iran
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Keywords : ROC surface; second and third trimester hemoglobin, Gestational diabetes, Preeclampsia
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Objectives:Changes of maternal hemoglobin during pregnancy affect the incidence rate of preeclampsia and gestational diabetes mellitus (GDM). The purpose of this study was to investigate the relation between the second and third trimester hemoglobin and the incidence of preeclampsia and gestational diabetes.
Materials and Methods:A total of 600 patients who referred to Milad Hospital in 2011 participated in this study. Second and third trimester hemoglobin levels were measured. The relation between maternal hemoglobin level and the incidence rate of preeclampsia and gestational diabetes was evaluated. In addition, the relation between second and third trimester hemoglobin level and education, job, history of abortion, and the use of calcium, folic acid, iron and multivitamin pills was evaluated.
Results:The results indicated in patients with gestational diabetes and preeclampsia, the second and third trimester maternal hemoglobin levels was high. The relative risk of GDM in the second trimester of pregnancy was 2.12 times higher in the high hemoglobin group than the normal hemoglobin group (CI = 1.14-3.94) and in the third trimester was 1.47 times higher (CI = 0.78-2.7). In addition, the relative risk of preeclampsia in the high hemoglobin group was 2.33 times of normal one (CI = 1.16-4.66) and in the third trimester was 1.33 higher (CI: 0.66-2.66).
Conclusion:The high hemoglobin especially in the second trimester is associated with higher risk of subsequent preeclampsia and GDM. Hence, it is recommended that women with high hemoglobin in their second trimester should be considered at greater risk of developing gestational diabetes mellitus and preeclampsia. Early detection and prevention will reduce the undesirable effects.
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