The Impact of Hypertension Onset Age on the Risk of Cardiovascular Diseases and Mortality: Two 10-Year Retrospective Cohort Studies in the United Kingdom and Hong Kong

Introduction: This study examines the association between the age of hypertension onset and the risks of cardiovascular diseases (CVD) and mortality. Methods: Two retrospective cohort studies were conducted using electronic medical records from public healthcare systems in the UK and Hong Kong (HK)....

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Main Authors: Ivy Lynn Mak, Boyuan Wang, Kiki Sze Nga Liu, Edmond Pui Hang Choi, Cindy Lo Kuen Lam, Eric Yuk Fai Wan
Format: Article
Language:English
Published: SAGE Publishing 2025-07-01
Series:Journal of Primary Care & Community Health
Online Access:https://doi.org/10.1177/21501319251350091
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author Ivy Lynn Mak
Boyuan Wang
Kiki Sze Nga Liu
Edmond Pui Hang Choi
Cindy Lo Kuen Lam
Eric Yuk Fai Wan
author_facet Ivy Lynn Mak
Boyuan Wang
Kiki Sze Nga Liu
Edmond Pui Hang Choi
Cindy Lo Kuen Lam
Eric Yuk Fai Wan
author_sort Ivy Lynn Mak
collection DOAJ
description Introduction: This study examines the association between the age of hypertension onset and the risks of cardiovascular diseases (CVD) and mortality. Methods: Two retrospective cohort studies were conducted using electronic medical records from public healthcare systems in the UK and Hong Kong (HK). Adults (≥18 years) who attended public health services between January 1, 2008 and December 31, 2013 were included in the study. Patients diagnosed with CVD before baseline or who transferred out of practice before baseline in the UK cohort were excluded. Hypertension onset was defined as a diagnosis of hypertension (≥140/90 mmHg) or the prescription of anti-hypertensive medication. Patients were categorized based on hypertension onset and divided into 6 age groups based on onset age. Propensity score fine stratification weights were applied to ensure balance between groups. Multivariable Cox proportional hazards regression a was used to assess risks of CVD, cardiovascular mortality, and deaths. Results: The UK cohort included 481 791 new-onset hypertension patients and 3 893 134 controls, while the HK cohort included 552 594 new-onset hypertension patients and 2 548 914 controls. Hypertension was associated with increased CVD and mortality risks, which decreased with older onset ages. In the UK cohort, hypertension onset at ≤39 years had the highest risks for CVD and deaths, with adjusted hazard ratios (HR = 4.30, 95% CI [3.98, 4.65] and HR = 2.86, 95% CI [2.64, 3.10]). For patients with hypertension onset at ≥80 years, risks were lower, with adjusted HR = 2.56, 95% CI [2.45, 2.68] for CVD and HR = 1.11, 95% CI [1.09, 1.14] for deaths. Similar trends were observed in the HK cohort. Conclusion: Younger age of hypertension onset is associated with higher risks for cardiovascular events and mortality, highlighting the need for early screening and intensive interventions in younger adults to improve long-term blood pressure control and reduce cardiovascular complications and deaths, alleviating the chronic disease burden on the public healthcare system over the long term.
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spelling doaj-art-7e555f285ca846d390b8d7d4b35cdf9f2025-08-20T03:11:55ZengSAGE PublishingJournal of Primary Care & Community Health2150-13272025-07-011610.1177/21501319251350091The Impact of Hypertension Onset Age on the Risk of Cardiovascular Diseases and Mortality: Two 10-Year Retrospective Cohort Studies in the United Kingdom and Hong KongIvy Lynn Mak0Boyuan Wang1Kiki Sze Nga Liu2Edmond Pui Hang Choi3Cindy Lo Kuen Lam4Eric Yuk Fai Wan5Department of Family Medicine and Primary Care, School of Clinical Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong S.A.R., ChinaDepartment of Family Medicine and Primary Care, School of Clinical Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong S.A.R., ChinaDepartment of Family Medicine and Primary Care, School of Clinical Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong S.A.R., ChinaSchool of Nursing, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong S.A.R., ChinaDepartment of Family Medicine and Primary Care, The University of Hong Kong-Shenzhen Hospital, ShenZhen, ChinaAdvanced Data Analytics for Medical Science Limited, Hong Kong S.A.R., ChinaIntroduction: This study examines the association between the age of hypertension onset and the risks of cardiovascular diseases (CVD) and mortality. Methods: Two retrospective cohort studies were conducted using electronic medical records from public healthcare systems in the UK and Hong Kong (HK). Adults (≥18 years) who attended public health services between January 1, 2008 and December 31, 2013 were included in the study. Patients diagnosed with CVD before baseline or who transferred out of practice before baseline in the UK cohort were excluded. Hypertension onset was defined as a diagnosis of hypertension (≥140/90 mmHg) or the prescription of anti-hypertensive medication. Patients were categorized based on hypertension onset and divided into 6 age groups based on onset age. Propensity score fine stratification weights were applied to ensure balance between groups. Multivariable Cox proportional hazards regression a was used to assess risks of CVD, cardiovascular mortality, and deaths. Results: The UK cohort included 481 791 new-onset hypertension patients and 3 893 134 controls, while the HK cohort included 552 594 new-onset hypertension patients and 2 548 914 controls. Hypertension was associated with increased CVD and mortality risks, which decreased with older onset ages. In the UK cohort, hypertension onset at ≤39 years had the highest risks for CVD and deaths, with adjusted hazard ratios (HR = 4.30, 95% CI [3.98, 4.65] and HR = 2.86, 95% CI [2.64, 3.10]). For patients with hypertension onset at ≥80 years, risks were lower, with adjusted HR = 2.56, 95% CI [2.45, 2.68] for CVD and HR = 1.11, 95% CI [1.09, 1.14] for deaths. Similar trends were observed in the HK cohort. Conclusion: Younger age of hypertension onset is associated with higher risks for cardiovascular events and mortality, highlighting the need for early screening and intensive interventions in younger adults to improve long-term blood pressure control and reduce cardiovascular complications and deaths, alleviating the chronic disease burden on the public healthcare system over the long term.https://doi.org/10.1177/21501319251350091
spellingShingle Ivy Lynn Mak
Boyuan Wang
Kiki Sze Nga Liu
Edmond Pui Hang Choi
Cindy Lo Kuen Lam
Eric Yuk Fai Wan
The Impact of Hypertension Onset Age on the Risk of Cardiovascular Diseases and Mortality: Two 10-Year Retrospective Cohort Studies in the United Kingdom and Hong Kong
Journal of Primary Care & Community Health
title The Impact of Hypertension Onset Age on the Risk of Cardiovascular Diseases and Mortality: Two 10-Year Retrospective Cohort Studies in the United Kingdom and Hong Kong
title_full The Impact of Hypertension Onset Age on the Risk of Cardiovascular Diseases and Mortality: Two 10-Year Retrospective Cohort Studies in the United Kingdom and Hong Kong
title_fullStr The Impact of Hypertension Onset Age on the Risk of Cardiovascular Diseases and Mortality: Two 10-Year Retrospective Cohort Studies in the United Kingdom and Hong Kong
title_full_unstemmed The Impact of Hypertension Onset Age on the Risk of Cardiovascular Diseases and Mortality: Two 10-Year Retrospective Cohort Studies in the United Kingdom and Hong Kong
title_short The Impact of Hypertension Onset Age on the Risk of Cardiovascular Diseases and Mortality: Two 10-Year Retrospective Cohort Studies in the United Kingdom and Hong Kong
title_sort impact of hypertension onset age on the risk of cardiovascular diseases and mortality two 10 year retrospective cohort studies in the united kingdom and hong kong
url https://doi.org/10.1177/21501319251350091
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