ArticlePloS one2019
P wave indices, heart rate variability and anthropometry in a healthy South Asian population.
Article in PloS one, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers, 1 of them a synthesis that pooled it.
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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.
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Who cites it
7 citing papers in PubMed, 1 synthesis or guideline pooled it, 13 citations in OpenAlex.
- Assessment of Hypertension Using Clinical Electrocardiogram Features: A First-Ever Review.Frontiers in medicine · 2020Pooled it
- Heart rate variability and emotion regulation: Multiethnic differences in reappraisal and suppression.Emotion (Washington, D.C.) · 2026Article
- Electrocardiographic P-wave indices and onset of atrial fibrillation and histological fibrosis in a general Japanese population: a prospective cohort analysis of the Hisayama Study.European heart journal open · 2025Article
- Omega-3 fatty acids attenuate cardiovascular effects of short-term exposure to ambient air pollution.Particle and fibre toxicology · 2022Article
- The relationship between demographic features, anthropometric parameters, sleep duration, and physical activity with ECG parameters in Fasa Persian cohort study.BMC cardiovascular disorders · 2021Article
- Ventricular Arrhythmia Risk Based on Ethnicity in COVID-19 Patients on Hydroxychloroquine and Azithromycin Combination: Viewpoint.SN comprehensive clinical medicine · 2020Article
- The height as an independent risk factor of atrial fibrillation: A review.Indian heart journalReview
Corrections and comments
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Authors and funding
7 authors at 2 institutions in 1 country.
Funding
Abstract
backgroundSouth Asians have a low prevalence of atrial fibrillation (AF) in comparison with White Europeans despite a higher burden of hypertension, diabetes mellitus and coronary artery disease. The reason for this disparity is unclear but may relate to electrophysiological or structural differences within the atria or variations in autonomic function. We aimed to assess these areas using a range of non-invasive cardiac investigations.
methodsA prospective cohort study was performed on 200 South Asian and 200 Caucasian healthy volunteers aged 18-40 years. All subjects underwent electrocardiography (ECG), echocardiography and anthropometric measurements. Eighty subjects in each cohort underwent 24 hour ambulatory ECG and fifty subjects in each cohort underwent exercise testing.
resultsCompared with White Europeans, South Asians were of a smaller height with lower lean body mass and smaller left atrial size. They had reduced P wave dispersion and P wave terminal force in lead V1. South Asians had a lower burden of supraventricular ectopy. They had a higher mean heart rate and South Asian males had lower heart rate variability, suggestive of sympathetic predominance. Exercise capacity was lower in South Asians.
conclusionsSouth Asians have differences in left atrial size, P wave indices, burden of supraventricular ectopy, heart rate, heart rate variability and anthropometric measurements. These differences may relate to variations in atrial morphology, atrial electrophysiology and autonomic function and might help to explain why South Asians are less susceptible to developing AF.
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Registered trials
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