Identifying populations with high prevalence of non-malarial febrile illnesses across different demographic groups in Malawi.

Authors

Peter Austin Morton Ntenda, David Matiya, Precious Kondwani Majoni, Rex Barnett Mbewe, Fentanesh Nibret Tiruneh

Published in

Malaria journal. Jul 17, 2026. Epub Jul 17, 2026.

Abstract

Malaria remains a major cause of febrile illness in Malawi; however, the epidemiology of non-malarial febrile illnesses (NMFIs) is less well characterized. Understanding the distribution and determinants of NMFIs across demographic groups is essential for improving case management in malaria-endemic settings.
This study aimed to characterized the distribution and predictors of NMFIs among preschool-aged children (PSC), school-aged children (SAC), women of reproductive age (WRA), and men in Malawi.
Secondary data from the 2015-2016 Malawi Micronutrient Survey were analyzed. Multivariable logistic regression models were fitted separately for each population subgroup to identify factors independently associated with NMFIs. Adjusted odds ratios (aORs) and 95% confidence intervals (CIs) were reported.
The prevalence of NMFIs was highest among PSC (27.0%) and lowest among men (9.1%). Asymptomatic malaria was most common in SAC (28.6%), while symptomatic malaria was highest in PSC (15.9%). Among PSC, age 24-35 months (aOR = 2.5; 95% CI 1.4-4.6), recent diarrhea (aOR = 1.6; 95% CI 1.1-2.5), recent cough (aOR = 3.8; 95% CI 2.5-5.7), wasting (aOR = 2.2; 95% CI 1.0-4.8), and urban residence (aOR = 1.9; 95% CI 1.0-3.5) were associated with increased odds of NMFIs. In SAC, WRA, and men, recent cough was a consistent predictor of NMFIs (aOR = 1.9; 95% CI 0.9-4.2; aOR = 3.1; 95% CI 1.7-5.8; and aOR = 44.3; 95% CI 10.2-192.8, respectively). Among WRA and men, elevated alpha-1-acid glycoprotein levels were also associated with higher odds of NMFIs (aOR = 2.2; 95% CI 1.0-4.8 and aOR = 4.5; 95% CI 1.0-86.4, respectively).
PSC bear the highest burden of NMFIs and symptomatic malaria, while SAC commonly harbor asymptomatic malaria. Febrile illness management should move beyond malaria-focused approaches to include integrated screening for common non-malarial infections, particularly in young children.

PMID:
42469805
Bibliographic data and abstract were imported from PubMed on 18 Jul 2026.

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