National guidelines recommend daily use of controller medications for children with persistent asthma. Although studies suggest low rates of controller use, little is known about predictors of underuse among low-income children in whom asthma morbidity is greatest.
Department of Ambulatory Care and Prevention, Harvard Medical School and Harvard Pilgrim Health Care, 133 Brookline Ave, 6th Floor, Boston, MA 02215, USA. Jonathan_Finkelstein@harvardpilgrim.org
