Preadmission Diet and Zip Code Influences the Pediatric Critical Care Clinical Course for Infants with Severe Respiratory Illness ( = 187).

We examined preadmission diet and zip code in infants with severe respiratory illness in the pediatric critical care unit. Patients aged 0 to 5 months admitted to the Helen DeVos Children's Hospital from January 2011 to May 2017 (  = 187), as exclusively formula, exclusively breastfed or mixed diet were included. Formula-fed infants (  = 88; 47%) clustered to zip codes with lower median incomes (<0.005), used public insurance as their payer type (  < 0.005), and were prescribed more ranitidine (  < 0.05) on admission.