Introduction: in Nigeria, perinatal mortality rate remains high among births at the health facility. Births occur majorly at the secondary healthcare level in Abuja Municipal Area Council (AMAC) of the Federal Capital Territory (FCT). Identifying factors influencing perinatal deaths in this setting would inform interventions on perinatal deaths reduction. We assessed perinatal mortality and its determinants in public secondary health facilities in AMAC. Methods: delivery and neonatal data from two selected public secondary health facilities between 2013 and 2016 were reviewed and we extracted maternal socio-demographics, obstetrics and neonatal data from hospital delivery, newborns´ admissions and discharge registers. Data were analyzed using descriptive statistics and Cox proportional hazard models (α = 5%). Results: perinatal mortality rate was 129.5 per 1000 births. Asphyxia 475 (34.0%), neonatal infection 279 (20.0%) and prematurity 242 (17.3%) accounted for majority of the 1,398 perinatal deaths. Unbooked status [aHR = 1.8 (95% CI 1.4-2.2)], antepartum haemorrhage [aHR = 2.8 (95% CI 1.2 6.7)], previous perinatal death [aHR = 2.3 (95% CI 1.7-3.1)] and maternal age ≥ 35 years [aHR= 1.4 (95% CI 1.0-1.8)] were associated with increased risk of perinatal death. Conclusion: perinatal mortality in the studied hospitals was high. Determinants of perinatal death were unbooked antenatal care (ANC) status, antepartum haemorrhage, previous perinatal death and high maternal age. Reducing perinatal deaths would require improving antenatal care attendance with healthcare staff identifying and targeting women at risk of pregnancy complications.
Study area and setting: the study was conducted in Abuja Municipal Area Council, one of the six area councils in the FCT, Abuja. Abuja is the capital city of Nigeria and is located in the geographical centre of the country. In 2016, the population of the FCT and Abuja Municipal Area Council was estimated to be 3,419,323 and 1,894,513 respectively. Women of child bearing age and pregnant women were projected to be 416,793 and 94,726 respectively in the area council. Abuja Municipal Area Council has six public secondary health facilities. This study was conducted in two public secondary health facilities namely: Asokoro District Hospital and Nyanya General Hospital randomly selected by balloting. These health facilities have specialist obstetrics and gynecology departments as well as paediatric departments with new born special care units. They offer 24 hour emergency obstetric and newborn special care. These centers each have an annual delivery of between 1200 and 1500 and they are usually the health facilities where most pregnant women resident in the area council present for comprehensive obstetric and newborn care. They also serve as referral centers for the many primary health care facilities located within and outside the area council. Study design: this study involved a 4-year retrospective review of records in the selected public secondary health facilities covering the period from January 1st, 2013 to December 31st, 2016. Study population: the study population was babies delivered after 28 weeks gestation in public secondary health facilities in Abuja Municipal Area Council of the FCT and their mothers. Inclusion criteria: all babies delivered after 28 weeks of gestation between 1st January, 2013 and 31st December, 2016, in the selected health facilities as well as their mothers were included in the study. Babies admitted within the first seven days of birth at the newborn special care units of the selected health facilities over the study period were also included in the study. Study Instruments: a structured data collection form consisting of the following sections: maternal socio-demographic data, obstetric history, prenatal interventions/treatment, intrapartum findings, fetal and perinatal outcome was used for data collection. Data collection procedure: data from the mothers´ delivery registers as well as the babies´ admission and discharge registers at the newborn special care units of the selected health facilities were extracted and entered into the structured data collection form. Data extracted included maternal age, antenatal booking status, parity, educational status, employment status, previous obstetric history, antenatal antepartum conditions, intrapartum complications, gestational age at delivery, birth weight, first- and fifth-minute Apgar scores, fetal sex, newborn special care unit admission, perinatal complications and probable causes of perinatal deaths. Data analysis: data were coded and statistical analysis conducted using Microsoft Excel and Epi info version 7.1.5.2 software. Frequencies and proportions were computed as descriptive statistics. The perinatal mortality rate, stillbirth rate and early neonatal death rate were equally computed. A modified version of the Wigglesworth classification of causes of perinatal mortality was used to classify the probable causes of perinatal mortality [11]. At the level of bivariate, the association between perinatal mortality and explanatory variables was determined using Cox proportional hazard model (α=5.0%). Variables that were found to be significant at the level of bivariate were included in the multivariate analysis in order to identify the determinants of perinatal mortality. The indicator of the status variable are the cases of perinatal mortality. The time to event variable is the life span of the fetus which covers the period of 28 weeks of gestation and the first week after delivery. Any dead fetus within this interval will attract a code 0 and 1 if otherwise. However, fetus where information on the survival status between 28 weeks of gestation and the first week after delivery could not be ascertained is said to be censored and the Cox proportional hazard model factors this in during iteration. Ethical considerations: ethical approval for the study was sought and obtained from the Health Research Ethics Committee of the Health and Human Services Secretariat of the Federal Capital Territory Administration (FCTA), Abuja (FHREC/2016/01/64/26-08-16). Permission to access hospital data was sought and obtained from the managements of the selected secondary health facilities. Consent was not obtained from the mothers because there was no direct individual contact with patients; however, all data were de-identified before entry into the data collection form to ensure confidentiality.
N/A