Influence of sleep disturbance, depression and anxiety on cognitive function of medical staff

Objective To explore the relationship between cognitive function and sleep disturbance, depression and anxiety. Methods Totally 333 medical staff were investigated using the repetitive neuropsychological status questionnaire (RBANS), the Pittsburgh sleep quality index (PSQI), the depression self-rating scale (SDS) and the anxiety self-rating scale (SAS). Results ①The difference of visual span in gender(male: (81.87±13.48) vs female: (77.12±13.09)) was statistically significant (t=2.928, P<0.05). ②Differences in immediate memory, language function, attention function and total score of RBANS among patients of different ages were statistically significant (F=9.654, 8.370, 11.465, 11.112, all P<0.01). ③There were significant differences in the RBANS, immediate memory, visual span, attention function and delayed memory between doctor and nurse(t=5.374, 4.730, 3.389, 4.359, 5.675, all P<0.01). ④There were significant differences in the RBANS, immediate memory, and delayed memory between different PSQI levels (F=3.475, 4.892, 4.087, all P<0.05). ⑤There were significant differences in RBANS ((88.87±12.47) vs (83.69±13.03)), immediate memory ((86.18±16.09) vs (80.56±15.38)), visual span ((79.39±13.32) vs (73.47±12.46)), and delayed memory ((89.03±10.26) vs (85.49±11.41))between the depressive symptoms and not depressive symptoms groups(t=2.794, 2.380, 3.042, 2.295, all P<0.05) .⑥The total score of medical staff's RBANS was significantly negatively correlated with their PSQI, SDS and SAS scores (r=-0.158, -0.233, -0.117, all P<0.05). ⑦SDS, age, occupation, education, time of sleep and PSQI entered multiple stepwise regression equations, which explain 39.9% variation in cognitive function of medical staff. Conclusion The cognitive function of medical staff is affected by gender, age, occupation, education, depression, and sleep disturbance.The worse the sleep quality, the higher the degree of depression and anxiety, and the poorer the cognitive function.