Publications by authors named "J L Marott"

Article Synopsis
  • Global longitudinal strain (GLS) is an important indicator of heart failure risk, but analyzing the entire strain curve may uncover additional valuable information about heart health.
  • This study used unsupervised machine learning (uML) to examine strain curves from over 3700 participants, finding 10 distinct clusters that revealed unique patterns predicting heart failure risk independent of GLS.
  • One specific cluster (cluster 9) showed a significant association with heart failure, even among younger and seemingly healthier individuals, indicating that other strain characteristics beyond peak GLS value are crucial for risk assessment.
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Background: There is insufficient evidence to provide recommendations for leisure-time physical activity among workers across various occupational physical activity levels. This study aimed to assess the association of leisure-time physical activity with cardiovascular and all-cause mortality across occupational physical activity levels.

Methods: This study utilized individual participant data from 21 cohort studies, comprising both published and unpublished data.

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Objective: Health effects of different physical activity domains (ie, during leisure time, work and transport) are generally considered positive. Using data, we assessed independent associations of occupational and leisure-time physical activity (OPA and LTPA) with all-cause mortality.

Design: Two-stage individual participant data meta-analysis.

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Background: A diagnosis of COPD is mainly considered in individuals with >10 pack-years of smoking. We tested the hypothesis that low smoking exposure, below the critical threshold of 10 pack-years, increases risk of COPD and leads to poor prognosis.

Methods: We followed non-obstructed adult smokers from the Copenhagen City Heart Study for COPD, defined as a forced expiratory volume in 1 s (FEV)/forced vital capacity <0.

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Background: Most adults ingest alcoholic beverages. Alcohol shows strong and positive associations with blood pressure (BP). We hypothesized that intake of red wine, white wine, beer, and spirits and dessert wine show similar associations with BP in the general population.

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