Patients' Self-Reported Recovery After an Environmental Intervention Aimed to Support Patient's Circadian Rhythm in Intensive Care.

Background: Patients in intensive care units (ICUs) are among the most vulnerable, and they require support to start their recovery. The design of the patient area in the ICU can play a prominent role in both the quality of care and patients' recovery. The lighting environment has the opportunity to restore and strengthen the natural human circadian rhythm and health.

Aim: To evaluate patients' self-reported recovery after being cared for in an ICU room rebuilt according to evidence-based design principles that promote recovery.

Method: An intervention was set up in a two-bed patient room including a cycled lighting system. Self-reported recovery was reported at 6 and 12 months after discharge. Data were analyzed using a 2(mechanically ventilated, nonmechanically ventilated) × 2(intervention room, ordinary room) analysis of covariance (ANCOVA) and 2(male, women) × 2(intervention room, ordinary room) ANCOVA.

Results: Data from the different rooms showed no significant main effects for recovery after 6 months, = .21; however, after 12 months, it become significant, . < .05. This indicated that patient recovery was positively influenced for patients cared for in the intervention room ( = 8.88, = 4.07) compared to the ordinary room ( = 10.90, = 4.26). There were no interaction effects for gender or if the patients had been mechanically ventilated either at 6 or 12 months' postdischarge.

Conclusions: A cycled lighting system may improve patient self-reported recovery after ICU care; however, more research on the topic is needed.