da Costa I G, Rapoff M A, Lemanek K, Goldstein G L
University of Kansas, Kansas City, USA.
J Appl Behav Anal. 1997 Winter;30(4):687-91. doi: 10.1901/jaba.1997.30-687.
We examined the effects of a combined education and token system intervention to improve adherence to inhaled corticosteroids for an 8-year-old girl and a 10-year-old boy with asthma. Adherence was measured by an electronic chronolog monitor, and disease outcome was assessed by repeated pulmonary function testing. A withdrawal design demonstrated improved adherence and, for 1 child, an associated improvement in pulmonary function occurred. Methodological and clinical implications are discussed, including variables other than adherence that may affect disease outcome.