Sex-Specific Prevalence and Distribution of Electrocardiographic Variants in Healthy Vietnamese Freshmen.

Authors

Thang Nguyen Ngoc, Quyet Nguyen Minh, An Bui Thi Thu, Thang Vu Tien, Soan Hoang Thu, Cuong Duong Cao, Vy Nguyen Hoai, Cong Nguyen Thanh, Binh Tran Van, Anh Dinh The

Published in

Annals of noninvasive electrocardiology : the official journal of the International Society for Holter and Noninvasive Electrocardiology, Inc. Volume 31. Issue 6.

Abstract

Data on ECG characteristics and qualitative ECG variants in healthy young Vietnamese adults remain limited. We evaluated sex-specific ECG differences and factors independently associated with common ECG variants in first-year Vietnamese university students.
This cross-sectional study included 6099 healthy students (3440 female [56.4%], 2659 male [43.6%]; mean age, 17.85 ± 0.65 years) undergoing standardized cardiovascular screening. Resting 12-lead ECGs were analyzed for quantitative parameters and qualitative variants.
All four core ECG parameters differed by sex (all p < 0.001). Females had higher heart rates (84.64 vs. 81.55 bpm) and longer QTc intervals (423.54 vs. 406.46 ms), whereas males had longer PR intervals (141.99 vs. 138.99 ms) and wider QRS complexes (91.44 vs. 80.81 ms). Males had higher prevalences of sinus arrhythmia (22.7% vs. 19.2%), early repolarization pattern (6.1% vs. 0.1%), right bundle branch block (4.4% vs. 0.3%), and sinus bradycardia (4.5% vs. 1.3%; all p < 0.001). Male sex was independently associated with early repolarization pattern (aOR, 37.7; 95% CI, 17.2-107) and right bundle branch block (aOR, 13.1; 95% CI, 7.55-25.2; both p < 0.001), but not sinus arrhythmia (aOR, 1.01; 95% CI, 0.84-1.21; p = 0.896).
ECG parameters and several qualitative variants differed by sex. These findings provide descriptive, population-specific data on ECG characteristics and common qualitative variants in healthy young Vietnamese university students.

PMID:
42908956
Bibliographic data and abstract were imported from PubMed on 23 Oct 2026.

Read full publication at:
Please sign in to see all details.

Stats

1-terrible, 9-excellent. How would you rate this publication? Sign in in to submit your rating.

Post a comment

You need to be signed in to post comments. You can sign in here.

Comments

There are no comments yet.