Comprehensive Atlas of Risk Factors Linked to New-Onset Hypertension

Overview

This study systematically identified 964 significant exposome variables associated with incident hypertension using data from 214,957 UK Biobank participants. Combining exposome-wide association studies with genetic correlation and Mendelian randomization analyses, 146 risk factors were supported by both epidemiological and genetic evidence, highlighting modifiable lifestyle factors and novel biomarkers.

Background

Hypertension affects approximately 1.39 billion people globally and is a leading cause of morbidity and mortality. Traditional studies have identified various risk factors such as family history, lipids, and lifestyle behaviors, but these often focus on single exposures and may be biased. Exposome-wide association studies (ExWAS) enable systematic, unbiased exploration of multiple exposures simultaneously, improving the identification and prioritization of hypertension risk factors. This study leverages the large-scale UK Biobank dataset to comprehensively map known and novel risk factors for new-onset hypertension.

Data Highlights

Key Findings

• 964 exposome variables were significantly associated with incident hypertension, with 462 showing convincing evidence after meta-analysis.
• Genetic correlation analyses identified 1,923 exposures genetically linked to hypertension risk.
• Mendelian randomization provided robust causal evidence for 125 phenotypes influencing hypertension development.
• Co-analyses highlighted 146 risk factors supported by both epidemiological and genetic data, including anthropometric traits, lung function, lipid levels, urate, and walking pace.
• Modifiable lifestyle factors such as television watching time and walking pace emerged as important targets for hypertension prevention.
• Novel exposures like high light scatter reticulocyte count and age at first live birth were identified as potential new risk factors.

Clinical Implications

This comprehensive atlas enables clinicians to prioritize modifiable risk factors for hypertension prevention, emphasizing lifestyle interventions such as increasing physical activity and reducing sedentary behaviors. The identification of novel biomarkers like urate suggests potential new avenues for therapeutic targeting. Integrating genetic and epidemiological evidence enhances risk stratification and personalized prevention strategies.

Conclusion

The study provides a robust, data-driven map of diverse risk factors for new-onset hypertension, combining exposome-wide and genetic analyses. These findings offer valuable insights for guiding prevention efforts and future research into hypertension pathogenesis.

References

1. UK Biobank Study -- A Comprehensive Atlas of Diverse Risk Factors Linked to New-Onset Hypertension