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Assessing patient-level risk factors for evidence-based early diagnosis of maternal sepsis

Article scientifique 2025 Anglais

Résumé

BACKGROUND: Maternal sepsis is a leading cause of maternal death, with the burden higher in low- and middle-income countries (LMICs). Early Warning Systems (EWS) combine clinical observations to identify a pattern consistent with an increased risk of clinical deterioration and have been introduced for monitoring sepsis risk. Maternal sepsis risks in LMICs are driven by factors at the health system and patient levels. This study assessed patient-level risk factors -age, health-seeking behaviour, comorbidities and procedures- associated with maternal sepsis in an urban tertiary hospital in Nigeria. METHODS: We conducted a retrospective study using health records of 4,510 patients from obstetrics and gynaecology units at a tertiary hospital in southwestern Nigeria from 2016 to 2020. To examine the association between patient-level risk factors and sepsis, we analysed data for the 565 maternal patients with a record of infection using a multiple logistic regression model. We extended the model by introducing interaction terms to assess whether the association between the risk factors and maternal sepsis varied by socio-demographic factors. RESULTS: About one-fifth of the 565 maternal patients with an infection had sepsis. Patients with sepsis had the lowest rate of live birth (29.7%) compared to those with (41.8%) and without (82.1%) an infection. Proportions of stillbirth (intrauterine fetal death) and early neonatal deaths were highest among patients with sepsis (15.3% and 1.8%) compared to those with (13.2% and 2.1%) and without (4.5% and 1.7%) an infection. Antenatal care booking status (OR: 0.17; 95% CI: 0.08-0.38) and having a catheter (OR: 2.60; 95% CI: 1.35-5.01) were significantly associated with maternal sepsis in the adjusted model. CONCLUSION: Our results suggest that improving access to antenatal care services for pregnant women will substantially reduce the risk of maternal sepsis in the Nigerian population. Guidelines for maternal sepsis management should consider subgroups of patients at higher risk, such as those with urethral catheters.

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Anyanwu, P., Expert, P., Honeyford, K., Bello, O., Salawu, M., Adeoye, I., Adebowale, A., Nwosu, A., Zaher, S., Ghazal, P., Fagbamigbe, A., Dairo, M., Costelloe, C. (2025). Assessing patient-level risk factors for evidence-based early diagnosis of maternal sepsis. https://doi.org/10.1186/s12884-025-07895-4

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Auteur(s)

Philip Emeka Anyanwu Paul Expert Kate Honeyford Oluwasomidoyin O. Bello Mobolaji M. Salawu Ikeola A. Adeoye Ayo Stephen Adebowale Amen-Patrick Nwosu Summia Zaher Peter Ghazal Adeniyi Francis Fagbamigbe Magbagbeola David Dairo Céire Costelloe

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