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The relationship between adherence to a Dietary Approach to Stop Hypertension (DASH) dietary pattern and insomnia
Hosein Rostami1, Sayyed Saeid Khayyatzadeh1, Hamidreza Tavakoli1
1Health research center, Life Style Institute, Baqiyatallah University of Medical Sciences, Tehran, Iran.
Background:
Adherence to a DASH- style diet has been reported to be associated with several health-related outcomes. A limited number of reports suggest that diet is an important behavioral determinant of insomnia. The current study aimed to explore the relationship between adherence to a DASH diet and the prevalence of insomnia in adolescent girls.
Methods:
A total of 488 adolescent girls aged 12-18 years old were recruited from different regions of Khorasan Razavi in northeastern of Iran, using a random cluster sampling method. DASH scores were determined according to the method of Fung et al. A validated Iranian version of the Insomnia Severity Index questionnaire was used to assess sleep insomnia. To assess the association between the DASH dietary pattern and insomnia, we applied logistic regression analysis in crude and adjusted models.
Results:
As may be expected, participants in the upper quintile of the DASH diet had significantly higher intakes of fruits, vegetables, low fat dairy products, fish and nuts and lower consumption of refined grains, red and processed meat, sugar-sweetened beverages and sweets. We found that a high adherence to a DASH-style diet was associated with a lower odds of insomnia (OR: 0.51; 95% CI 0.26-1.00) compared with those with lowest adherence. Similar results were found after adjustment for potential confounders.
Conclusions:
There is an inverse association between adherence to DASH dietary patterns and insomnia. Further prospective studies are required to demonstrate these findings.
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