Association between polyphenol intake and arterial hypertension in seasonal agricultural workers in the Ñuble region Chile
DOI:
https://doi.org/10.12873/Keywords:
Hipertensión, Polifenoles, Enfermedades de los Trabajadores Agrícolas.Abstract
Introduction: High blood pressure is a complex disorder influenced by environmental, genetic, and etiological factors, with diagnosis based on blood pressure (PA) measurements. Recent studies support the idea that a diet rich in polyphenols (PLF) could help reduce high blood pressure (HTA).
Objective: To evaluate the association between polyphe
nols and hypertension in seasonal agricultural workers dedicated to the reception and production of seasonal fruits located in a rural area of the Ñuble region in Chile.
Materials and methods: Analytical observational retro
spective case-control study. A total sample of 60 seasonal agricultural workers from the company VitaFoods SpA (Coihueco, Chile) will be studied between March and April 2025. The cases will be workers with arterial hypertension (PA ≥ 140/90 mmHg in two consecutive measurements), while controls will
have lower PA. The FFQ-P questionnaire will be used to measure the intake of total polyphenols consumed in the last six days. The mg/day of total polyphenols will be compared in both groups with the Student’s t test and a logistic regression will be obtained to obtain odds ratios, with 95% CI.
Results: The sample (76% of male cases) showed an av
erage consumption of total PLF (mg/day) in cases and controls of 1436.73 ± 762.60 and 1681.74 ± 1163.61 mg/day (p=0.530). The PLF reported in the vegetables consumed was statistically associated (OR=0.98; 95% CI: 0.95-0.99) with the group with normal blood pressures.
Conclusion: The study linked the intake of vegetable
polyphenols to a lower risk of hypertension, highlighting their cardiovascular protective effect, albeit modest in magnitude. These findings support their promotion as part of a healthy diet.
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