Ponsuge C Sigera1, Senaka Rajapakse2, Praveen Weeratunga2, Nipun L De Silva3, Laksiri Gomes4, Gathsaurie N Malavige4, Chaturaka Rodrigo5, Sumadhya D Fernando1. 1. Department of Parasitology, Faculty of Medicine, University of Colombo, 00800, Colombo 08, Sri Lanka. 2. Department of Clinical Medicine, Faculty of Medicine, University of Colombo, 00800, Colombo 08, Sri Lanka. 3. Department of Clinical Medicine, Faculty of Medicine, General Sir John Kotelawala Defence University, 10390, Ratmalana, Sri Lanka. 4. Centre for Dengue Research, Faculty of Medical Sciences, University of Sri Jayewardenepura, 10250, Nugegoda, Sri Lanka. 5. Department of Pathology, School of Medical Sciences, University of New South Wales, Sydney, NSW 2052, Australia.
Abstract
BACKGROUND: Previous studies on post-infection fatigue in dengue are few but suggest that up to 25% of dengue patients may suffer from fatigue. This study aimed to evaluate the prevalence and associations of post-infection fatigue in dengue patients compared with non-dengue fever patients. METHODS: Post-infection fatigue and its demographic and clinical associations were assessed in adult dengue and non-dengue fever patients 2 months after the acute infection in a prospective cohort study in Sri Lanka. Fatigue at 2 months (primary endpoint) was assessed with the fatigue questionnaire as a dichotomous outcome based on a pre-recommended cut-off (score ≥4) and as the total score from the questionnaire (higher score indicates more fatigue). RESULTS: Of 260 patients, 158 had dengue and, of these, 51 (32%) had fatigue at 2 months. Risk was higher in dengue patients (vs non-dengue; relative risk [RR] 4.93 [95% confidence interval {CI} 2.3 to 10.4]) and more so in female dengue patients (vs male dengue patients; RR 2.45 [95% CI 1.24 to 4.86]). Severe dengue patients had a higher mean fatigue score (p=0.024). CONCLUSIONS: Post-infection fatigue is an underappreciated burden of this widely prevalent infection. Our findings are useful to triage patients at risk of fatigue for follow-up.
BACKGROUND: Previous studies on post-infection fatigue in dengue are few but suggest that up to 25% of dengue patients may suffer from fatigue. This study aimed to evaluate the prevalence and associations of post-infection fatigue in dengue patients compared with non-dengue fever patients. METHODS: Post-infection fatigue and its demographic and clinical associations were assessed in adult dengue and non-dengue fever patients 2 months after the acute infection in a prospective cohort study in Sri Lanka. Fatigue at 2 months (primary endpoint) was assessed with the fatigue questionnaire as a dichotomous outcome based on a pre-recommended cut-off (score ≥4) and as the total score from the questionnaire (higher score indicates more fatigue). RESULTS: Of 260 patients, 158 had dengue and, of these, 51 (32%) had fatigue at 2 months. Risk was higher in dengue patients (vs non-dengue; relative risk [RR] 4.93 [95% confidence interval {CI} 2.3 to 10.4]) and more so in female dengue patients (vs male dengue patients; RR 2.45 [95% CI 1.24 to 4.86]). Severe dengue patients had a higher mean fatigue score (p=0.024). CONCLUSIONS: Post-infection fatigue is an underappreciated burden of this widely prevalent infection. Our findings are useful to triage patients at risk of fatigue for follow-up.
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