The study period was the first semester of 2001. From PMSI, all hospitalization
summaries including an ICD-10th code related to a potential ADR were selected.
From the French Pharmacovigilance Database, all serious ADRs which occurred during
the study period and were reported by physicians working in the University Hospital
were collected. After identification of common cases, the capture–recapture method
was applied in order to estimate the real number of ADRs occurring during the first
semester of 2001