Epidemiology of early-onset neonatal sepsis in Qatar, 2015-2022: a multicentre retrospective cohort study.

Abstract

Background: Early-onset neonatal sepsis (EOS) is an important cause of neonatal morbidity and mortality. The incidence has declined due to intrapartum antibiotic use and improved perinatal care. This study aimed to analyse EOS incidence, pathogen profiles, resistance patterns and neonatal outcomes in Qatar.

Objectives: The primary objective was to estimate the incidence and trend of EOS among neonates born in Qatar from July 2015 to December 2022. Secondary objectives included describing risk factors, clinical characteristics and outcomes associated with EOS.

Methodology: The study reviewed medical records in three major public hospitals in Qatar to identify EOS cases among live-born infants.

Results: The study analysed 179 147 live births (LBs) and identified 157 cases of EOS, with an overall EOS incidence of 0.88 per 1000 LBs. Group B Streptococcus was the most common pathogen (58.6%), followed by Escherichia coli (15.3%). A significant decline in EOS incidence was observed from 2015 to 2022. The overall mortality rate was 13.4%, with the significant predictors being decreasing gestational age, chorioamnionitis and thrombocytopenia. The combined outcome of death and neurodisability was observed in 21% of the cohort.

Conclusion: This study highlights an EOS incidence of 0.88 per 1000 LB in Qatar, a rate comparable to high-income countries. The decline in incidence underscores the effectiveness of improved prenatal care and screening. Continued surveillance and enhanced preventive measures are essential to further reduce incidence and improve outcomes for vulnerable newborns.