Implementation of quality control circle interventions to reduce perioperative delirium in older adults with hip fractures: a pilot study

The integration of QCC-based interventions was associated with a reduced incidence and duration of perioperative delirium in older adults with hip fractures. Improvements in sleep quality and night-time sleep duration were observed, indicating that QCC activities may contribute to enhanced postoperative recovery in this population. However, these findings should be interpreted with caution given the relatively small sample size and single-center design.