Abstract:
Background: Various studies show that the quality of sleep, in
employees can be effective in improving the quality and performance of
their work. Numerous factors such as nutrition and diet can affect the
quality of sleep of people, especially employees. This study was
performed to investigate the relationship between food quality scores
(HEI, DII and DASH score) and sleep quality in employee.
Materials and methods: The present cross-sectional study was
performed on 211 employees with a mean age of 38.75±11.31. Nutritional
status of individuals was determined through the Food Frequency
Questionnaire (FFQ) and to assess sleep quality, the Pittsburgh Sleep
Quality Index (PSQI)was used which contains questions about delay,
duration, sleep effectiveness, sleep disorders, sleeping pills and daily
dysfunction. The quality of sleep decreases with increasing Pittsburgh
index score. The calculated dietary quality scores include DASH Dietary
Adherence Index, Healthy Nutrition Index (HEI) and Diet Inflammation
Index (DII).
Results: The results of this study after adjusting for
confounding factors including age, sex, daily energy intake and BMI
showed a significant positive relationship between DASH diet score and
sleep duration (p <0.001). There was a significant negative
relationship between HEI score and total score of Pittsburgh Sleep
Quality Index (P = 0.003). Also, HEI score had a significant positive
relationship with sleep duration in the unmodified and modified models
(p <0.001), and a significant negative relationship was seen
in unadjusted and modified model between DII score and sleep duration (p
<0.001).
Conclusion: DASH and HEI score had a significant positive
relationship with sleep duration and DII had a significant negative
relationship with sleep duration. HEI also significantly improved sleep
quality.
Keywords: sleep quality, DASH score, HEI index