Figure 4

Enteral feeding did not influence the mean power spectral density (mPSD) in preterm infants. Group-level comparisons within each of the three GA groups of the mPSD values across the three feeding periods in (a) bradygastria, (b) normogastria, and (c) tachygastria, respectively. In each panel, the y-axis denotes the mPSD, and the x-axis represents the neonate GA groups. The red dashed boxes outline no significant difference in mPSD across the three feeding phases in both early GA and mid GA infants at all three GR bands. A significant increase in mPSD is marked by “*” and determined by p < 0.05. Error bars denote the Standard Error of the Mean for the respective mPSD values across three GA groups and in each GR band.