Journal of Neonatal-Perinatal Medicine 10 (2017) 387–392 DOI:10.3233/NPM-16151 IOS Press 387 Original Research Correlation of hematocrit and Apgar scores in newborns of women with hypertensive disorders in pregnancy Helen Chioma Okoye a,∗ , Benedict Nwogoh b and Odutola Israel Odetunde c a Department of Hematology and Immunology, College of Medicine, University of Nigeria Teaching Hospital, Ituku-Ozalla, Enugu, Nigeria b Department of Hematology and Blood Transfusion, College of Medicine, University of Benin, Benin City Nigeria, Nigeria c Department of Pediatrics, College of Medicine, University of Nigeria Teaching Hospital, Ituku-Ozalla, Enugu, Nigeria Received 13 November 2016 Revised 30 March 2017 Accepted 1 June 2017 Abstract. OBJECTIVES: To compare the incidence of polycythemia in newborns of women with hypertensive disorders in pregnancy (HDP) with those of normotensive mothers, to determine the incidence of perinatal stress using Apgar scores and to correlate hematocrit with Apgar scores in these newborn. STUDY DESIGN: This was a hospital-based comparative study conducted in the University of Port Harcourt Teaching Hospital, Nigeria. MAIN OUTCOME MEASURES: Apgar scores of 200 newborns- 100 from mothers with HDP (case group) and 100 from normotensive mothers (control group)- were taken at 1st and 5th minute of birth and cord blood samples collected to determine hematocrit. The subjects were categorized into polycythemic and non polycythemic using a hematocrit ≥65%. RESULTS: Eight percent of newborns of women with HDP had polycythemia while none of the controls did. Apgar scores in the case group with and without polycythemia at one-minute were 4.1 ± 1.8 and 6.6 ± 2.1, respectively and at 5 minutes were 6.9 ± 1.7 and 8.5 ± 1.4 respectively. Hematocrit correlated positively with Apgar scores (both at one and five minutes) in cases without polycythemia (r = 0.221, p = 0.034 and r = 0.255, p = 0.014). Hematocrit of polycythemic newborns did not correlate with Apgar scores (r = –0.287, p = 0.491 and r = –0.436, p = 0.281). CONCLUSION: The incidence of polycythemia is significantly higher in newborns of women with HDP and these poly- cythemic neonates had a significantly higher incidence of birth asphyxia. Therefore, birth outcome as determined by Apgar score is influenced by hematocrit. Keywords: Hematocrit, polycythemia, Apgar scores, birth asphyxia, hypertensive disorders in pregnancy ∗ Address for correspondence: Dr. Helen Chioma Okoye, De- partment of Hematology and Immunology, College of Medicine, University of Nigeria Teaching Hospital, Ituku-Ozalla, Enugu 400001, Nigeria. Tel.: +2348038730138; E-mails: helenc.okoye@ unn.edu.ng; bonhcm@yahoo.co.uk. 1. Introduction Perinatal outcome is strongly influenced by hyper- tensive disorder in pregnancy (HDP) with different degrees of fetal injury irrespective of the underlying 1934-5798/17/$35.00 © 2017 – IOS Press and the authors. All rights reserved