Risk factors for postoperative delirium in patients undergoing lower extremity joint arthroplasty: a retrospective population-based cohort study

To the Editor We welcome the thoughtful comments by Cheng et al [1][1] in response to our analysis on risk factors for postoperative delirium (POD). In summary, the primary aim of our analysis was to investigate perioperative drivers of POD in population-based data covering >25% of US