The Correlation Between Night Shift Work Schedules, Sleep Quality, and Depression Symptoms

Area of Science:

• Occupational Health
• Sleep Medicine
• Psychiatry

Background:

• Night shift work is associated with adverse health outcomes, including poor sleep and depressive symptoms.
• Nurses are a population frequently exposed to night shift schedules.
• Understanding the relationship between sleep quality and depression in this group is crucial for targeted interventions.

Purpose of the Study:

• To evaluate the correlation between sleep quality and depressive symptoms among nurses in Saudi Arabia.
• To compare sleep quality and depression levels between night shift and day shift nurses.
• To identify factors associated with depressive symptoms in nurses.

Main Methods:

• A cross-sectional study involving 191 nurses in Saudi Arabian hospitals.
• Assessed depressive symptoms using the Hospital Anxiety and Depression Scale (HADS).
• Measured sleep quality using the Pittsburgh Sleep Quality Index (PSQI).

Main Results:

• Nurses working night shifts reported significantly poorer sleep quality (higher PSQI scores) compared to day shift nurses (p<0.05).
• A significant positive correlation was observed between HADS and PSQI scores, indicating a link between depression and poor sleep.
• Binary logistic regression revealed that longer working hours and inadequate sleep were independent predictors of depressive symptoms.

Conclusions:

• Poor sleep quality resulting from night shift work may contribute to higher rates of depression among Saudi nurses.
• Interventions aimed at improving sleep quality for night shift nurses could potentially mitigate depressive symptoms.
• Further research is warranted to explore causal mechanisms and develop effective support strategies.