PTX3 and ventilator-associated pneumonia: In addition, for patients with low VAP suspicion also there was no correlation between the levels of blood and bronchial SP-D levels on day 1 (r = 0.37; p = 0.46) or day 6 (r = 0.51; p = 0.24): Figure 3, panel B. Similarly, no correlation was found between blood and bronchial PTX-3 levels in the high VAP suspicion group on day 1 (r = −0.048; p = 0.88) or day 6 (r = 0.42; p = 0.25): Figure 4, panel A. In the low VAP suspicion group r = 0.16 for day 1 (p = 0.69) and for day 6 r = −0.61 (p = 0.145): Figure 4, panel B.