Fig. 1From: Effects of dexmedetomidine at different dosages on perioperative haemodynamics and postoperative recovery quality in elderly patients undergoing hip replacement surgery under general anaesthesia: a randomized controlled trialFlow chart of the study. 455 patients were recruited, and 174 patients met the inclusion criteria. Randomization was done on 150 patients, with 30 in each group. Then, 14 participants declined in the D0.75 groupBack to article page