Fig. 2From: Effect of goal-directed fluid therapy based on plasma colloid osmotic pressure on the postoperative pulmonary complications of older patients undergoing major abdominal surgeryPaO2/FiO2 ratio. Data are expressed as mean ± standard deviation. Compared with T0 in the same group, *P < 0.05 is statistically significant. Compared with group C at the same time, #P < 0.05 is statistically significantBack to article page