Hospital-associated venous thromboembolism in children: incidence and clinical characteristics.

Objective: To determine incidence and clinical characteristics of hospital-associated venous thromboembolism (VTE) in pediatric patients.

Study Design: A retrospective analysis of patients with hospital-associated VTE at the Johns Hopkins Hospital from 1994 to 2009 was performed. Clinical characteristics of patients aged 21 years and younger who developed VTE symptoms after 2 days of hospitalization or <90 days after hospital discharge were examined.