Distribution of responses to the knowledge questions. Distribution of responses to the knowledge questions. The increase in knowledge from baseline to postintervention was statistically significant for health care costs (P = .04) and health care value (P < .001). The association between knowledge and number of sessions attended was also statistically significant for health care costs (P = .01) and health care value (P < .001). Jennifer A. Jonas et al. Hospital Pediatrics 2016;6:72-79 ©2016 by American Academy of Pediatrics