A (length of stay) and B (cost), XmR SPCs where each dot represents a patient exposed to methadone prenatally. A (length of stay) and B (cost), XmR SPCs.

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A (length of stay) and B (cost), XmR SPCs where each dot represents a patient exposed to methadone prenatally. A (length of stay) and B (cost), XmR SPCs where each dot represents a patient exposed to methadone prenatally. C (treated with morphine), p‐chart where each dot represents 10 patients exposed to methadone prenatally. The centerline for A and B shifted downward (8 consecutive points below the mean) in March 2010, January 2012, and May 2015. The centerline in A also shifted downward in June 2014. The centerline in C shifted in March 2011 and January 2014. LCL, lower control limit; LOS, length of stay; UCL, upper control limit. Matthew R. Grossman et al. Pediatrics 2017;139:e20163360 ©2017 by American Academy of Pediatrics