Materials and Methods
The present study was conducted on nurses working in the reanimation unit and internal medicine, coronary and neurology intensive care units at Gazi Yaşargil Training and Research Hospital between January 20, 2020 and March 20, 2020. The sample of the study was selected from nurses working in intensive care units, independent of all other departments in the hospital. The day-shift group included nurses working from 08.00 to 16.00, and the night-shift group included nurses working from 16.00 until 08.00 on the next day.
The study included a total of 80 volunteers, including 40 day-shift and 40 night-shift employees, by getting their informed consent and giving information that they can leave the research at any time. The data of the five volunteers were excluded due to their declaration of requesting to leave the study. The study excluded a volunteer because of declaring the use of benzodiazepine, which is likely to impair executive functions, after participation in the study and 2 volunteers due to incomplete completion of the scale. The data of 72 volunteers, 31 in the day-shift and 41 in the night-shift, were included in the evaluation.
The demographic data of the sample groups were obtained by the sociodemographic data form prepared by the researchers. The researchers applied the Hamilton Depression Rating Scale (HAM-D), Hamilton Anxiety Rating Scale (HAM-A), Pittsburgh Sleep Quality Index (PSQI) and Stroop color word interaction test (SCWI) in both groups. All tests were performed at 15:00 in the day-shift group and at 7:00 in the night-shift group. Thus, tests were applied in both groups one hour before the end of the shift.