Impact of parity and gestational age of mothers with hypertension on birth weight, red blood cells and mode of delivery of their babies

  • Helen Chioma Okoye
  • Chilota Chibuife Efobi
  • Josephat Maduabuchi Chinawa
  • Odutola Israel Odetunde
  • Awoere Tamunosiki Chinawa
  • Elias Chikee Aniwada
Keywords: Hypertension, neonate, gestational age, parity.

Abstract

Background: Maternal factors are determinants of birth outcome which includes birth weight, haematological indices and mode of delivery of their babies.
Objectives: To determine the impact of parity and gestational age of hypertensive mothers on some neonatal variables.
Methods: A hospital based cross-sectional study of measurement of neonatal variables (birth weight, red blood cells and mode of delivery) among hypertensive mothers and their controls was conducted over a period of six months. Data were analyzed using the Statistical Package for Social Sciences program (SPSS), version 20.
Results: There were statistically significant differences in means between the neonates of the hypertensive group and non-hypertensive group for maternal age (t =1.61, p = 0.002), baby weight (t =2.87, p < 0.001), haemoglobin (Hb) (t =4.65, p = 0.010) and packed cell volume (PCV) (t =4.75, p = 0.009), but none for gravidity (t =1.95, p = 0.927)
For all subjects, there was poor correlation between gestational age and variables; birth weight , haemoglobin (Hb), packed cell volume (PCV), nucleated red blood cell (nRBC) and parity. Likewise, parity poorly correlated with variables; age, birth weight, Hb, PCV, and nRBC. There was a statistically significant association between mode of delivery and hypertension (χ2 =53.082, p <0.001) but none with having a family history of hypertension (χ2 =1.13, p = 0.287).
Conclusion: Parity and gestational age of mothers with hypertension have no impact on birth weight and red cells when compared with their non-hypertensive counterparts. However, mothers of babies delivered by elective and emergency caesarean section were about 2-3 times more likely to be hypertensive than those that delivered through spontaneous vertex delivery.

Keywords: Hypertension; neonate; gestational age; parity.

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