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Title: The relationship between age and the manifestations of and mortality associated with severe malaria
Authors: Arjen M. Dondorp
Sue J. Lee
M. A. Faiz
Saroj Mishra
Ric Price
Emiliana Tjitra
Marlar Than
Ye Htut
Sanjib Mohanty
Emran Bin Yunus
Ridwanur Rahman
Francois Nosten
Nicholas M. Anstey
Nicholas P.J. Day
Nicholas J. White
Mahidol University
Shoklo Malaria Research Unit
University of Oxford
Dhaka Medical College
Chittagong Medical College
Ispat General Hospital
Menzies School of Health Research
Badan Penelitian Dan Pengembangan Kesehatan, Kementerian Kesehatan Republik Indonesia
Defence Services General Hospital
Department of Medical Research
Keywords: Medicine
Issue Date: 15-Jul-2008
Citation: Clinical Infectious Diseases. Vol.47, No.2 (2008), 151-157
Abstract: Background. The reported case-fatality rate associated with severe malaria varies widely. Whether age is an independent risk factor is uncertain. Methods. In a large, multicenter treatment trial conducted in Asia, the presenting manifestations and outcome of severe malaria were analyzed in relation to age. Results. Among 1050 patients with severe malaria, the mortality increased stepwise, from 6.1% in children (age, <10 years) to 36.5% in patients aged >50 years (P < .001). Compared with adults aged 21-50 years, the decreased risk of death among children (adjusted odds ratio, 0.06; 95% confidence interval, 0.01-0.23; P < .001) and the increased risk of death among patients aged >50 years (adjusted odds ratio, 1.88; 95% confidence interval, 1.01-3.52; P = .046) was independent of the variation in presenting manifestations. The incidence of anemia and convulsions decreased with age, whereas the incidence of hyperparasitemia, jaundice, and renal insufficiency increased with age. Coma and metabolic acidosis did not vary with age and were the strongest predictors of a fatal outcome. The number of severity signs at hospital admission also had a strong prognostic value. Conclusion. Presenting syndromes in severe malaria depend on age, although the incidence and the strong prognostic significance of coma and acidosis are similar at all ages. Age is an independent risk factor for a fatal outcome of the disease. © 2008 by the Infectious Diseases Society of America. All rights reserved.
ISSN: 10584838
Appears in Collections:Scopus 2006-2010

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