The subjects that received chest drainage vs those who did notdiffered significantly in rates of C-section, perinatal asphyxia resuscitation,a history of mechanical ventilation prior to pneumothorax, tachypnea, groan,frothing from mouth, chest retractions, enlarged hemithorax on the involvedside, cyanosis, neutrophil ratio, C-reactive protein, and degree of lungcollapse (P<0.05) (Table 2). Here, CRP is linked to pneumothorax.