Age at job initiation and risk of coronary heart disease: findings from the UK biobank cohort study

Abstract Background Commencing work at an early age has been linked to various risk factors for coronary heart disease (CHD), such as shift work and intensive job strain. However, the relationship between starting work too early and CHD risk remains largely unclear. We examined the association betwe...

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Main Authors: Zenghui Zhang, Chuanrui Zeng, Zhiteng Chen, Pinming Liu, Jingwei Gao, Qi Guo, Maoxiong Wu, Wanbing He, Qingyuan Gao, Dachuan Guo, Xiaotian Liang, Zegui Huang, Jingfeng Wang, Haifeng Zhang, Yangxin Chen
Format: Article
Language:English
Published: BMC 2023-10-01
Series:BMC Public Health
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Online Access:https://doi.org/10.1186/s12889-023-17034-3
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author Zenghui Zhang
Chuanrui Zeng
Zhiteng Chen
Pinming Liu
Jingwei Gao
Qi Guo
Maoxiong Wu
Wanbing He
Qingyuan Gao
Dachuan Guo
Xiaotian Liang
Zegui Huang
Jingfeng Wang
Haifeng Zhang
Yangxin Chen
author_facet Zenghui Zhang
Chuanrui Zeng
Zhiteng Chen
Pinming Liu
Jingwei Gao
Qi Guo
Maoxiong Wu
Wanbing He
Qingyuan Gao
Dachuan Guo
Xiaotian Liang
Zegui Huang
Jingfeng Wang
Haifeng Zhang
Yangxin Chen
author_sort Zenghui Zhang
collection DOAJ
description Abstract Background Commencing work at an early age has been linked to various risk factors for coronary heart disease (CHD), such as shift work and intensive job strain. However, the relationship between starting work too early and CHD risk remains largely unclear. We examined the association between age at job initiation and the risk of CHD. Methods UK Biobank participants aged 38 to 70 years without cardiovascular disease who provided data on their age at job initiation were included. The primary outcome was CHD, which was ascertained using hospital and death records. The hazard ratios (HRs) and 95% confidence interval (CIs) for the association between age at job initiation and CHD were calculated using multivariable Cox regression. Results Of the 501,971 participants, 114,418 eligible participants were included in the final analysis. The median age at job initiation was 19.0 years. During the mean follow-up of 12.6 years, 6,130 (5.4%) first CHD events occurred. We observed that age at job initiation was inversely associated with CHD (HR 0.98, 95% CI 0.97–0.99), and the association was potentially J-shaped. The HRs for the < 17-year, 17–18-year, and 19–21-year age groups were 1.29 (95%CI 1.18–1.41), 1.12 (95% CI 1.03–1.22) and 1.05 (95% CI 0.97–1.14), respectively, compared with those of the ≥ 22-year group. Conclusions Age at job initiation was associated with incident CHD, which was independent of socioeconomic status. Participants who commenced employment before the age of 19 years exhibited a higher risk of developing CHD later in adulthood.
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spelling doaj.art-ffad6a8fd4d742eeb0a5b3bf306b66d52023-11-05T12:31:30ZengBMCBMC Public Health1471-24582023-10-0123111110.1186/s12889-023-17034-3Age at job initiation and risk of coronary heart disease: findings from the UK biobank cohort studyZenghui Zhang0Chuanrui Zeng1Zhiteng Chen2Pinming Liu3Jingwei Gao4Qi Guo5Maoxiong Wu6Wanbing He7Qingyuan Gao8Dachuan Guo9Xiaotian Liang10Zegui Huang11Jingfeng Wang12Haifeng Zhang13Yangxin Chen14Department of Cardiology, Sun Yat-sen Memorial Hospital, Sun Yat-sen UniversityDepartment of Cardiology, Sun Yat-sen Memorial Hospital, Sun Yat-sen UniversityDepartment of Cardiology, Sun Yat-sen Memorial Hospital, Sun Yat-sen UniversityDepartment of Cardiology, Sun Yat-sen Memorial Hospital, Sun Yat-sen UniversityDepartment of Cardiology, Sun Yat-sen Memorial Hospital, Sun Yat-sen UniversityDepartment of Cardiology, Sun Yat-sen Memorial Hospital, Sun Yat-sen UniversityDepartment of Cardiology, Sun Yat-sen Memorial Hospital, Sun Yat-sen UniversityDepartment of Cardiology, Sun Yat-sen Memorial Hospital, Sun Yat-sen UniversityDepartment of Cardiology, Sun Yat-sen Memorial Hospital, Sun Yat-sen UniversityDepartment of Cardiology, Sun Yat-sen Memorial Hospital, Sun Yat-sen UniversityDepartment of Cardiology, Sun Yat-sen Memorial Hospital, Sun Yat-sen UniversityDepartment of Cardiology, Sun Yat-sen Memorial Hospital, Sun Yat-sen UniversityDepartment of Cardiology, Sun Yat-sen Memorial Hospital, Sun Yat-sen UniversityDepartment of Cardiology, Sun Yat-sen Memorial Hospital, Sun Yat-sen UniversityDepartment of Cardiology, Sun Yat-sen Memorial Hospital, Sun Yat-sen UniversityAbstract Background Commencing work at an early age has been linked to various risk factors for coronary heart disease (CHD), such as shift work and intensive job strain. However, the relationship between starting work too early and CHD risk remains largely unclear. We examined the association between age at job initiation and the risk of CHD. Methods UK Biobank participants aged 38 to 70 years without cardiovascular disease who provided data on their age at job initiation were included. The primary outcome was CHD, which was ascertained using hospital and death records. The hazard ratios (HRs) and 95% confidence interval (CIs) for the association between age at job initiation and CHD were calculated using multivariable Cox regression. Results Of the 501,971 participants, 114,418 eligible participants were included in the final analysis. The median age at job initiation was 19.0 years. During the mean follow-up of 12.6 years, 6,130 (5.4%) first CHD events occurred. We observed that age at job initiation was inversely associated with CHD (HR 0.98, 95% CI 0.97–0.99), and the association was potentially J-shaped. The HRs for the < 17-year, 17–18-year, and 19–21-year age groups were 1.29 (95%CI 1.18–1.41), 1.12 (95% CI 1.03–1.22) and 1.05 (95% CI 0.97–1.14), respectively, compared with those of the ≥ 22-year group. Conclusions Age at job initiation was associated with incident CHD, which was independent of socioeconomic status. Participants who commenced employment before the age of 19 years exhibited a higher risk of developing CHD later in adulthood.https://doi.org/10.1186/s12889-023-17034-3Young workerRisk factorCoronary heart diseaseEarly work exposure
spellingShingle Zenghui Zhang
Chuanrui Zeng
Zhiteng Chen
Pinming Liu
Jingwei Gao
Qi Guo
Maoxiong Wu
Wanbing He
Qingyuan Gao
Dachuan Guo
Xiaotian Liang
Zegui Huang
Jingfeng Wang
Haifeng Zhang
Yangxin Chen
Age at job initiation and risk of coronary heart disease: findings from the UK biobank cohort study
BMC Public Health
Young worker
Risk factor
Coronary heart disease
Early work exposure
title Age at job initiation and risk of coronary heart disease: findings from the UK biobank cohort study
title_full Age at job initiation and risk of coronary heart disease: findings from the UK biobank cohort study
title_fullStr Age at job initiation and risk of coronary heart disease: findings from the UK biobank cohort study
title_full_unstemmed Age at job initiation and risk of coronary heart disease: findings from the UK biobank cohort study
title_short Age at job initiation and risk of coronary heart disease: findings from the UK biobank cohort study
title_sort age at job initiation and risk of coronary heart disease findings from the uk biobank cohort study
topic Young worker
Risk factor
Coronary heart disease
Early work exposure
url https://doi.org/10.1186/s12889-023-17034-3
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