Fig. 4
Postprandial change in rintSO2 values in infants with and without abdominal complications The boxes represent the change in rintSO2 values of the clustered data from the first two postnatal weeks between the 25th and 75th centiles (interquartile range) between baseline and 10–30 min after feeding (a) and between baseline and 30–60 min after feeding (b) for infants without abdominal complications (uncomplicated), infants who developed feeding intolerance (FI), necrotizing enterocolitis (NEC), and a spontaneous intestinal perforation (SIP); the whiskers represent the range of the values with the exception of outliers. Outliers are represented by the circles and diamonds, defined as values between 1.5 interquartile range and 3 interquartile ranges from the end of a box. # < .10