Dietary sodium to potassium ratio is an independent predictor of cardiovascular events: a longitudinal follow-up study

Abstract Background The current prospective cohort study aimed to explore the potential associations between dietary sodium (Na), potassium (K), and sodium-to-potassium (Na-to-K) ratio with an incidence risk of cardiovascular disease (CVD) among Iranian adults. Methods The participants of the Tehran...

Full description

Bibliographic Details
Main Authors: Zahra Mosallanezhad, Mohammad Jalali, Zahra Bahadoran, Parvin Mirmiran, Fereidoun Azizi
Format: Article
Language:English
Published: BMC 2023-04-01
Series:BMC Public Health
Subjects:
Online Access:https://doi.org/10.1186/s12889-023-15618-7
_version_ 1797840825456001024
author Zahra Mosallanezhad
Mohammad Jalali
Zahra Bahadoran
Parvin Mirmiran
Fereidoun Azizi
author_facet Zahra Mosallanezhad
Mohammad Jalali
Zahra Bahadoran
Parvin Mirmiran
Fereidoun Azizi
author_sort Zahra Mosallanezhad
collection DOAJ
description Abstract Background The current prospective cohort study aimed to explore the potential associations between dietary sodium (Na), potassium (K), and sodium-to-potassium (Na-to-K) ratio with an incidence risk of cardiovascular disease (CVD) among Iranian adults. Methods The participants of the Tehran Lipid and Glucose Study (men and women aged 30–84 years, n = 2050), free of CVD at baseline (2006–2008) were included. Dietary intakes were assessed using a validated food frequency questionnaire (FFQ), and incident CVD (i.e., coronary heart disease, stroke, and CVD mortality) were documented up to March 2018. Cox proportional hazard models were used to estimate hazard ratios (HRs) and 95% confidence interval (CI) regarding the association between dietary Na, K, and Na-to-K ratio with CVD events. Results During a median follow-up of 10.6 years, 10.14% of participants experienced CVD outcomes. A 41% increased risk of CVD in relation to each increase in 1000 mg/d of Na intake. In the fully-adjusted model, higher Na intake (> 4143 versus < 3049 mg/d) was significantly related to the increased risk of CVD (HR = 1.99, 95% CI = 1.06–3.74). Independent of the well-known risk factors, a 56% reduced risk of CVD was observed in the participants with a higher dietary K intake (HR = 0.44, 95% CI = 0.20–0.94). A Higher Na-to-K ratio was associated with an increased risk of CVD (HR = 1.99, 95% CI = 1.13–3.52). Conclusion Our study showed that the Na-to-K ratio might independently predict future risk of CVD events in adults.
first_indexed 2024-04-09T16:21:03Z
format Article
id doaj.art-ede7fb082ad9413d89ab7c2263165f67
institution Directory Open Access Journal
issn 1471-2458
language English
last_indexed 2024-04-09T16:21:03Z
publishDate 2023-04-01
publisher BMC
record_format Article
series BMC Public Health
spelling doaj.art-ede7fb082ad9413d89ab7c2263165f672023-04-23T11:30:48ZengBMCBMC Public Health1471-24582023-04-012311810.1186/s12889-023-15618-7Dietary sodium to potassium ratio is an independent predictor of cardiovascular events: a longitudinal follow-up studyZahra Mosallanezhad0Mohammad Jalali1Zahra Bahadoran2Parvin Mirmiran3Fereidoun Azizi4Nutrition and Endocrine Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical SciencesNutrition and Endocrine Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical SciencesNutrition and Endocrine Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical SciencesDepartment of Clinical Nutrition and Dietetics, Faculty of Nutrition and Food Technology, National Nutrition and Food Technology Research Institute, Shahid Beheshti University of Medical SciencesEndocrine Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical SciencesAbstract Background The current prospective cohort study aimed to explore the potential associations between dietary sodium (Na), potassium (K), and sodium-to-potassium (Na-to-K) ratio with an incidence risk of cardiovascular disease (CVD) among Iranian adults. Methods The participants of the Tehran Lipid and Glucose Study (men and women aged 30–84 years, n = 2050), free of CVD at baseline (2006–2008) were included. Dietary intakes were assessed using a validated food frequency questionnaire (FFQ), and incident CVD (i.e., coronary heart disease, stroke, and CVD mortality) were documented up to March 2018. Cox proportional hazard models were used to estimate hazard ratios (HRs) and 95% confidence interval (CI) regarding the association between dietary Na, K, and Na-to-K ratio with CVD events. Results During a median follow-up of 10.6 years, 10.14% of participants experienced CVD outcomes. A 41% increased risk of CVD in relation to each increase in 1000 mg/d of Na intake. In the fully-adjusted model, higher Na intake (> 4143 versus < 3049 mg/d) was significantly related to the increased risk of CVD (HR = 1.99, 95% CI = 1.06–3.74). Independent of the well-known risk factors, a 56% reduced risk of CVD was observed in the participants with a higher dietary K intake (HR = 0.44, 95% CI = 0.20–0.94). A Higher Na-to-K ratio was associated with an increased risk of CVD (HR = 1.99, 95% CI = 1.13–3.52). Conclusion Our study showed that the Na-to-K ratio might independently predict future risk of CVD events in adults.https://doi.org/10.1186/s12889-023-15618-7SodiumPotassiumSodium to potassium ratioCardiovascular disease
spellingShingle Zahra Mosallanezhad
Mohammad Jalali
Zahra Bahadoran
Parvin Mirmiran
Fereidoun Azizi
Dietary sodium to potassium ratio is an independent predictor of cardiovascular events: a longitudinal follow-up study
BMC Public Health
Sodium
Potassium
Sodium to potassium ratio
Cardiovascular disease
title Dietary sodium to potassium ratio is an independent predictor of cardiovascular events: a longitudinal follow-up study
title_full Dietary sodium to potassium ratio is an independent predictor of cardiovascular events: a longitudinal follow-up study
title_fullStr Dietary sodium to potassium ratio is an independent predictor of cardiovascular events: a longitudinal follow-up study
title_full_unstemmed Dietary sodium to potassium ratio is an independent predictor of cardiovascular events: a longitudinal follow-up study
title_short Dietary sodium to potassium ratio is an independent predictor of cardiovascular events: a longitudinal follow-up study
title_sort dietary sodium to potassium ratio is an independent predictor of cardiovascular events a longitudinal follow up study
topic Sodium
Potassium
Sodium to potassium ratio
Cardiovascular disease
url https://doi.org/10.1186/s12889-023-15618-7
work_keys_str_mv AT zahramosallanezhad dietarysodiumtopotassiumratioisanindependentpredictorofcardiovasculareventsalongitudinalfollowupstudy
AT mohammadjalali dietarysodiumtopotassiumratioisanindependentpredictorofcardiovasculareventsalongitudinalfollowupstudy
AT zahrabahadoran dietarysodiumtopotassiumratioisanindependentpredictorofcardiovasculareventsalongitudinalfollowupstudy
AT parvinmirmiran dietarysodiumtopotassiumratioisanindependentpredictorofcardiovasculareventsalongitudinalfollowupstudy
AT fereidounazizi dietarysodiumtopotassiumratioisanindependentpredictorofcardiovasculareventsalongitudinalfollowupstudy