Effects of ulinastatin combined with dexmedetomidine on cognitive dysfunction and emergence agitation in elderly patients who underwent total hip arthroplasty

Figure 2 Comparison of Mini-Mental State Examination scores and the incidence of postoperative cognitive dysfunction among the three groups. A: Mini-Mental State Examination scores; B: The incidence of postoperative cognitive dysfunction. ^aP < 0.05, dexmedetomidine + ulinastatin vs dexmedetomidine. ^bP < 0.01, dexmedetomidine + ulinastatin vs ulinastatin. MMSE: Mini-Mental State Examination; POCD: Postoperative cognitive dysfunction; Dex: Dexmedetomidine.