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Clinical predictors of bacterial meningitis in infants and young children in The Gambia

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Summary Background 

Bacterial meningitis is an important cause of childhood morbidity and mortality world-wide. In the developing world, where the burden of acute meningitis and its long-term sequelae are especially high, staff with limited training at primary health care facilities must be able to recognize the symptoms and signs of meningitis, so that suspected cases can be referred urgently to hospitals. Methods 

Children who presented with possible invasive bacterial infection to health facilities in The Gambia, West Africa, between 1993 and 1995 were investigated in a standardized manner and clinical findings were documented. Bacterial meningitis was defined as the growth of bacteria from the cerebrospinal fluid. Clinical findings were compared between cases of meningitis and other children. Results 

Of 2097 children between 2 months and 3 years of age investigated, 51 had a confirmed diagnosis of bacterial meningitis. In multivariate analysis using a model adjusting for age but not including respiratory signs, the variables associated independently with meningitis were appearance of being very sick (odds ratio for meningitis vs. no meningitis or no lumbar puncture performed (OR) 4.1, 95% CI 1.5–11.1), being lethargic or unconscious (OR 5.2, 95% CI 2.1–13), a stiff neck (OR 29.3, 95% CI 12.2–70.3), a bulging fontanel (OR 3.2, 95% CI 1.2–8.5) and reduced feeding as a prompted complaint (OR 2.9, 95% CI 1.3–6.7). A combination model of a history of convulsions, or being lethargic or unconscious, or having a stiff neck, as used in the WHO–Integrated Management of Childhood Illness (IMCI) guidelines, had a sensitivity of 98% and a specificity of 72% to predict meningitis. Conclusions 

A combination of a limited number of signs is sufficient to predict meningitis with high sensitivity, without a large number of children who do not have meningitis being unnecessarily referred.
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Keywords: Integrated Management of Childhood Illness; child; clinical signs; developing countries; meningitis

Document Type: Research Article

Affiliations: 1: London School of Hygiene and Tropical Medicine, London, UK 2: Medical Research Council Laboratories, Fajara, The Gambia

Publication date: September 1, 2002

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