Chi Wang1, Yu Yuan2, Mengyi Zheng3, An Pan4, Miao Wang1, Maoxiang Zhao1, Yao Li1, Siyu Yao1, Shuohua Chen3, Shouling Wu5, Hao Xue6. 1. Department of Cardiology, Chinese PLA General Hospital, Beijing, China. 2. Department of Occupational and Environmental Health, Key Laboratory of Environment and Health, Ministry of Education and State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China. 3. Department of Cardiology, Kailuan General Hospital, Tangshan, China. 4. Department of Epidemiology and Biostatistics, Key Laboratory of Environment and Health, Ministry of Education and State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China. 5. Department of Cardiology, Kailuan General Hospital, Tangshan, China. Electronic address: drwusl@163.com. 6. Department of Cardiology, Chinese PLA General Hospital, Beijing, China. Electronic address: xuehaoxh301@163.com.
Abstract
BACKGROUND: The relations of hypertension onset age with cardiovascular diseases (CVD) and all-cause mortality remain inconclusive. OBJECTIVES: This study sought to examine the associations of hypertension onset age with CVD and all-cause mortality. METHODS: This prospective study included 71,245 participants free of hypertension and CVD in the first survey (July 2006 to October 2007) of the Kailuan study, a prospective cohort study in Tangshan, China. All participants were followed biennially until December 31, 2017. A total of 20,221 new-onset hypertension cases were identified during follow-up. We randomly selected 1 control participant for each new-onset hypertensive participant, matching for age (±1 year) and sex, and included 19,887 case-control pairs. We used weighted Cox regression models to calculate the average hazard ratios of incident CVD and all-cause mortality across the age groups. RESULTS: During an average follow-up of 6.5 years, we identified 1,672 incident CVD cases and 2,008 deaths. After multivariate adjustment, with the increase in hypertension onset age, the hazards of outcomes were gradually attenuated. The average hazard ratio (95% confidence interval) of CVD and all-cause mortality were 2.26 (1.19 to 4.30) and 2.59 (1.32 to 5.07) for the hypertension onset age <45 years old group, 1.62 (1.24 to 2.12) and 2.12 (1.55 to 2.90) for the 45- to 54-year age group, 1.42 (1.12 to 1.79) and 1.30 (1.03 to 1.62) for the 55- to 64-year age group, and 1.33 (1.04 to 1.69) and 1.29 (1.11 to 1.51) for the ≥65-year age group, respectively (p for interaction = 0.38 for CVD and <0.01 for death). CONCLUSIONS: Hypertension was associated with a higher risk for CVD and all-cause mortality, and the associations were stronger with a younger age of onset.
BACKGROUND: The relations of hypertension onset age with cardiovascular diseases (CVD) and all-cause mortality remain inconclusive. OBJECTIVES: This study sought to examine the associations of hypertension onset age with CVD and all-cause mortality. METHODS: This prospective study included 71,245 participants free of hypertension and CVD in the first survey (July 2006 to October 2007) of the Kailuan study, a prospective cohort study in Tangshan, China. All participants were followed biennially until December 31, 2017. A total of 20,221 new-onset hypertension cases were identified during follow-up. We randomly selected 1 control participant for each new-onset hypertensiveparticipant, matching for age (±1 year) and sex, and included 19,887 case-control pairs. We used weighted Cox regression models to calculate the average hazard ratios of incident CVD and all-cause mortality across the age groups. RESULTS: During an average follow-up of 6.5 years, we identified 1,672 incident CVD cases and 2,008 deaths. After multivariate adjustment, with the increase in hypertension onset age, the hazards of outcomes were gradually attenuated. The average hazard ratio (95% confidence interval) of CVD and all-cause mortality were 2.26 (1.19 to 4.30) and 2.59 (1.32 to 5.07) for the hypertension onset age <45 years old group, 1.62 (1.24 to 2.12) and 2.12 (1.55 to 2.90) for the 45- to 54-year age group, 1.42 (1.12 to 1.79) and 1.30 (1.03 to 1.62) for the 55- to 64-year age group, and 1.33 (1.04 to 1.69) and 1.29 (1.11 to 1.51) for the ≥65-year age group, respectively (p for interaction = 0.38 for CVD and <0.01 for death). CONCLUSIONS:Hypertension was associated with a higher risk for CVD and all-cause mortality, and the associations were stronger with a younger age of onset.
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