scholarly journals Relation of total bilirubin and QT interval prolongation (from the Third National Health and Nutrition Examination Survey)

2019 ◽  
Vol 25 (2) ◽  
Author(s):  
Chaudry N. Majeed ◽  
Muhammad I. Ahmad ◽  
Irfan Ahsan ◽  
Muhammad A. Anees ◽  
Sanjay K. Maheshwari ◽  
...  
Keyword(s):  
National Health ◽  
Qt Interval ◽  
Total Bilirubin ◽  
Nutrition Examination Survey ◽  
Interval Prolongation ◽  
The Third ◽  
Health And Nutrition ◽  
Qt Interval Prolongation

Relation of Marital Status and QT Interval Prolongation (from the Third National Health and Nutrition Examination Survey)

2019 ◽  
Vol 124 (2) ◽  
pp. 211-215 ◽  
Author(s):  
Muhammad Imtiaz Ahmad ◽  
Chaudry Nasir Majeed ◽  
Dipendra Chaudhary ◽  
Abhishek Dutta ◽  
Hanumantha R. Jogu ◽  
...  
Keyword(s):  
Marital Status ◽  
National Health ◽  
Qt Interval ◽  
Nutrition Examination Survey ◽  
Interval Prolongation ◽  
The Third ◽  
Health And Nutrition ◽  
Qt Interval Prolongation

scholarly journals Coffee, Alcohol, Smoking, Physical Activity and QT Interval Duration: Results from the Third National Health and Nutrition Examination Survey

PLoS ONE ◽  
2011 ◽  
Vol 6 (2) ◽  
pp. e17584 ◽  
Author(s):  
Yiyi Zhang ◽  
Wendy S. Post ◽  
Darshan Dalal ◽  
Elena Blasco-Colmenares ◽  
Gordon F. Tomaselli ◽  
...  
Keyword(s):  
Physical Activity ◽  
National Health ◽  
Qt Interval ◽  
Nutrition Examination Survey ◽  
Interval Duration ◽  
The Third ◽  
Health And Nutrition ◽  
Qt Interval Duration

Risk factors for prolonged QTc among US adults: Third National Health and Nutrition Examination Survey

2005 ◽  
Vol 12 (4) ◽  
pp. 363-368 ◽  
Author(s):  
Stephen R. Benoit ◽  
Aaron B. Mendelsohn ◽  
Parivash Nourjah ◽  
Judy A. Staffa ◽  
David J. Graham
Keyword(s):  
Risk Factors ◽  
Myocardial Infarction ◽  
National Health ◽  
Thyroid Disease ◽  
Qt Interval ◽  
Qtc Interval ◽  
Nutrition Examination Survey ◽  
Health And Nutrition ◽  
Qt Interval Prolongation ◽  
Medical Histories

Background QT interval prolongation can lead to torsades de pointes, a potentially fatal arrhythmia. Although research exists on the relationship between QT prolongation and clinical outcome, few studies have described risk factors for prolonged QT interval in the general population. Methods The Third National Health and Nutrition Examination Survey (NHANES III) collected electrocardiogram interval data on 8561 subjects over 40 years of age and projected results to the US population. QT was corrected for heart rate using Fridericia's formula. Logistic regression analyses were performed to identify factors independently associated with prolonged QTc interval, defined as being in the upper 5% of the population QTc interval distribution. Analyses were conducted separately for women and men as a result of differences in the QT distribution between the sexes and also because of potential effect modification. Analytical variables included age, race/ethnicity, electrolyte measurements, body mass index, the recent use of QT-prolonging drugs and past medical histories of stroke, thyroid disease, hypertension, diabetes and myocardial infarction. Results Age, female sex, hypocalcemia (men), hypokalemia (women), and a history of thyroid disease and myocardial infarction (men) were associated with a prolonged QTc interval. In addition, taking QT-prolonging medications in the past month was associated with more than a twofold increase in the odds of prolonged QTc interval in both men and women. Conclusions Healthcare practitioners should be aware that a prolonged QTc interval is a potential indicator of cardiovascular risk, and should exercise caution in prescribing potentially QT-prolonging medications to certain patients.

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