Fig. 2From: Efficacy of surgical treatment on polypharmacy of elderly patients with lumbar spinal canal stenosis: retrospective exploratory research A) The distribution of the number of preoperative prescription drugs in all the participants. B) Comparison of the preoperative and 6-month and 1-year postoperative number of prescribed drugs in the participants. C) Comparison of the preoperative and 6-month and 1-year postoperative proportion of polypharmacyBack to article page