Obesity, a major risk factor for idiopathic intracranial hypertension (IIH), is rapidly increasing in all ages of the United States population. We studied trends in the incidence of cerebrospinal fluid (CSF) shunts for IIH in the United States between 1988 and 2002, using a national hospital discharge database.
Stephen E. and Catherine Pappas Center for Neuro-Oncology, Massachusetts General Hospital, Department of Surgery, Harvard Medical School, Boston, Massachusetts, USA.