Significant correlations between VEGF levels and tested parameters. Correlations were established by testing of tracheal aspirates (n = 120) from infants and tested for significance via regression analysis or ANOVA using the SAS procedure PROC MIXED. (A) VEGF levels were significantly correlated with the postnatal age of the infants (p = 0.0073). (B) Positive correlation of VEGF levels with relative DMBT1 levels in the tracheal aspirates (p = 0.0032). (C) Significantly increased VEGF levels (mean ± SEM) in aspirates from infants with versus without infection/sepsis (p = 0.0002).