ArticleNutrients2025
Mediterranean Diet Adherence and Sleep Quality Among Primary and Secondary School Teachers in Portugal: An Exploratory Cross-Sectional Study.
Article in Nutrients, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
2 citing papers in PubMed.
- Sleep Quality in Spanish Adult Women: Associations with Sociodemographic Variables and Pre-Sleep Habits.Healthcare (Basel, Switzerland) · 2026Article
- Link Between Diet Quality and Lifestyle Factors Among Young Adults in Saudi Arabia.Healthcare (Basel, Switzerland) · 2026Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
6 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundDiet and sleep are modifiable lifestyle factors that influence health and well-being. While adherence to the Mediterranean diet has been associated with improved sleep quality, this relationship remains understudied in high-stress occupational groups such as school teachers.
objectiveTo examine the association between adherence to the Mediterranean diet and self-reported sleep quality among primary and secondary school teachers in Portugal.
methodsA cross-sectional study was conducted with 113 teachers who completed a self-administered digital questionnaire. Adherence to the Mediterranean diet was assessed using the 14-item Mediterranean Diet Adherence Screener (MEDAS) and sleep quality was evaluated with the Pittsburgh Sleep Quality Index (PSQI).
resultsOf the 113 participants, 58% reported poor sleep quality (PSQI > 5), and the median PSQI score was 6.0 (IQR 4.0-8.8). The median MEDAS score was 9.0 (IQR 8.0-10.0), with 34% classified as having high adherence. When stratified by dietary adherence, there were no statistically significant differences in global PSQI or its components, and multivariable linear regression showed no association between MEDAS and PSQI. Patterns varied by teaching level: poor sleep predominated in most levels except the 2nd Cycle; high adherence was most prevalent in the 1st Cycle, moderate adherence predominated in the 3rd Cycle and secondary education, and the 2nd Cycle showed similar shares of moderate and high adherence.
conclusionsIn this occupational group, poor sleep was common and varied across teaching levels, while Mediterranean diet adherence showed no detectable association with overall sleep quality in this study. Larger, longitudinal studies using objective assessments of diet and sleep, and accounting for factors such as stress and chronotype, are warranted to clarify potential links in educational settings.
Indexed as
Identifiers
What Socratic holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the Socratic graph.