The prevalence of pre-eclampsia among pregnant women in the University of Calabar Teaching Hospital, Calabar

Abstract

Background: Pre-eclampsia is a pregnancy-specific disorder recognized clinically by the onset of hypertension and proteinuria. It complicates about 2%-10% of pregnancies worldwide and contributes to maternal and foetal morbidity and mortality. However there is paucity of information on its prevalence in Calabar. Aims: To determine the prevalence of pre-eclampsia in the University of Calabar Teaching Hospital, Calabar, Nigeria over a period of 3 years for the purpose of further genetic studies. Settings and Design: A descriptive epidemiologic study that consisted of all documented cases of Pre-eclampsia in a tertiary referral center from 2009 to 2011. Materials and Methods: Data on pre-eclamptic patients were obtained from the Records Department of the hospital. Statistical Analysis: The results were anaylzed using SPSS version 17, percentages, mean and standard deviations were used to describe data. Results and Conclusions: A total of 8,524 deliveries and 104 cases of pre-eclampsia were documented giving an overall prevalence of 1.2%. The prevalence in 2009, 2010, and 2011 was 0.7%, 1.2%, and 1.5%, respectively. Fifty-nine case notes were available for analysis (56.7% retrieval). The mean age of the patients was 27 ± 4.9 and majority; 25 (42.4%) were in the age group 25-29 years. The mean parity was 1.1 ± 1.4 and 26 (44.1%) were nulliparous. 11 (18.6%) had family history of hypertension, 2 (3.4%) had personal history of hypertension, and 2 (3.4%) had a personal history of pre-eclampsia. The slight increase in the prevalence rate over the years underscores the need for close surveillance.