Fig. 4From: Effects of pressure-controlled ventilation targeting end-inspiratory flow rate on pulmonary complications and inflammation levels in patients undergoing spinal surgery in the prone position: a randomized clinical trialComparison of serum IL-6 levels of the three groups at different pointsNote: Compared with preoperative period, aP < 0.01, bP < 0.05; Compared with Group V, cP < 0.01, dP < 0.05; Compared with Group P1, eP < 0.05Back to article page