We aimed to determine the maternal characteristics (demographics, an obstetric history, and prior cervical excisional procedure) associated with a short mid-trimester cervical length (CL, defined as a CL of ≤ 25 mm) and whether having a short cervix explains the association between these maternal characteristics and spontaneous preterm delivery (SPTD, defined as a delivery before 34 weeks). Thi...

OBJECTIVES Bronchiolitis is a leading cause of infant hospitalization in the United States; the mean length of stay (LOS) is 3.3 days. We sought to identify the initial clinical characteristics of bronchiolitis associated with admission and with longer LOS in a large multicenter clinical trial. METHODS This study was a secondary analysis of a randomized trial conducted in 20 emergency departm...