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. 2022 Nov 24;22:503. doi: 10.1186/s12872-022-02962-6

Fig. 2.

Fig. 2

Daily comparison of the IL-2 and PCT levels between the POD and non-POD cohorts. (“abcd” represents the comparison at different time point by letter notation method (intra-group comparison); “***”indicates a significant difference (P < 0.001) between the POD and non-POD cohorts at each time point (inter-group comparison); with POD, patients with postoperative delirium; without POD, patients without postoperative delirium; PreOP, preoperative; POD0, upon admission to the intensive care unit; POD1, postoperative day 1; POD2, postoperative day 2; POD3, postoperative day 3; IL-2, interleukin-2; PCT, procalcitonin)