Patient Characteristics
Overall, 1854 patients with hip replacement (mean [SD] age, 65.9 [10.6] years; 1029 women [55.5%]) and 1564 patients with knee replacement (mean [SD] age, 66.1 [9.1] years; 839 women [53.6%]) were assigned to the intervention group, and 1843 patients with hip replacement (mean [SD] age, 65.7 [10.6] years; 1036 women [56.2%]) and 1546 patients with knee replacement (mean [SD] age, 65.9 [9.4] years; 830 women [53.7%]) were assigned to the control group (