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The prevalence of overweight and obesityin a childhood population of idiopathic intracranial hypertension

Objectives: To ascertain the prevalence of overweight and obesity in childhood idiopathic intracranial hypertension (IIH) and compare it to that of adult IIH. Materials and methods: Thirteen children with a diagnosis of IIH were reviewed (11 females, 2 males). The mean presenting age was 13.5 years (range: 10–17 years). Each patient underwent full ophthalmic, orthoptic, and neurologic investigation. Height and weight were assessed by calculating a body mass index (BMI) and plotting a growth centile. Results: Lumbar puncture opening pressure ranged from 160 to 790mmH 2 O. Body mass indices ranged from 17 to 43. Four children were overweight and four obese. Growth centiles were elevated for 11 children with a mean of 87. Older children (>15 years) were more likely to be obese than younger children (<11 years). Conclusions: Overweight and obesity differ from adult IIH in the paediatric population, dependent on age groups. Pre-adolescent children are far less likely to be obese compared to older teenage children in whom the percentage obesity reflects that of the adult population.