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Yang Y, Xu H, Liu X, Li J, Liew Z, Liu X, Huang C, Zhu J, Zhang J, Chen L, Hao Y, Qin G, Yu Y. Joint association of smoking and physical activity with mortality in elderly hypertensive patients: A Chinese population-based cohort study in 2007-2018. Front Public Health 2022; 10:1005260. [PMID: 36249230 PMCID: PMC9558130 DOI: 10.3389/fpubh.2022.1005260] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Accepted: 08/31/2022] [Indexed: 01/27/2023] Open
Abstract
Background Although associations of physical activity and smoking with mortality have been well-established, the joint impact of physical activity and smoking on premature mortality among elderly hypertensive population was still unclear. This study aimed to assess association of physical activity, smoking, and their interaction with all-cause and cardiovascular disease (CVD) mortality risk in elderly hypertensive patients. Methods We included 125,978 Chinese hypertensive patients aged 60-85 years [mean (SD) age, 70.5 (6.9) years] who had records in electronic health information system of Minhang District of Shanghai, China in 2007-2015. Cox regression was used to estimate individual and joint association of smoking and physical activity on all-cause and CVD mortality. Interactions were measured both additively and multiplicatively. Additive interaction was evaluated by relative excess risk due to interaction (RERI), attributable proportion due to interaction (AP) and synergy index (S). Results Among 125,978 elderly hypertensive patients (median age 70.1), 28,250 deaths from all causes and 13,164 deaths from CVD were observed during the follow-up up to 11 years. There was an additive interaction between smoking and physical inactivity [RERI: all-cause 0.19 (95% CI: 0.04-0.34), CVD 0.28 (0.06-0.50); AP: all-cause 0.09 (0.02-0.16), CVD 0.14 (0.04-0.23); S: all-cause 1.21 (1.04-1.42), CVD 1.36 (1.06-1.75)], while the concurrence of both risk factors was associated with more than 2-fold risk of death [hazard ratio (HR): all-cause 2.10 (1.99-2.21), CVD 2.19 (2.02-2.38)]. Conclusion Our study suggested that smoking and physical inactivity together may have amplified association on premature death compared to the sum of their individual associations, highlighting the importance of improving behavioral factors in combination and promoting a comprehensive healthy lifestyle in hypertensive elderly.
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Affiliation(s)
- Yating Yang
- Department of Biostatistics, School of Public Health, The Key Laboratory of Public Health Safety of Ministry of Education, Fudan University, Shanghai, China
| | - Huilin Xu
- Shanghai Minhang Center for Disease Control and Prevention, Shanghai, China
| | - Xiaoqin Liu
- NCRR-National Centre for Register-Based Research, Aarhus University, Aarhus, Denmark
| | - Jiong Li
- Department of Clinical Medicine, Aarhus University, Aarhus, Denmark,Department of Clinical Epidemiology, Aarhus University, Aarhus, Denmark
| | - Zeyan Liew
- Department of Environmental Health Sciences, Yale School of Public Health, New Haven, CT, United States
| | - Xing Liu
- Department of Epidemiology, School of Public Health, The Key Laboratory of Public Health Safety of Ministry of Education, Fudan University, Shanghai, China
| | - Chen Huang
- Department of Biostatistics, School of Public Health, The Key Laboratory of Public Health Safety of Ministry of Education, Fudan University, Shanghai, China
| | - Jingjing Zhu
- Department of Biostatistics, School of Public Health, The Key Laboratory of Public Health Safety of Ministry of Education, Fudan University, Shanghai, China
| | - Jinling Zhang
- Shanghai Minhang Center for Disease Control and Prevention, Shanghai, China
| | - Linli Chen
- Shanghai Minhang Center for Disease Control and Prevention, Shanghai, China
| | - Yuantao Hao
- Department of Medical Statistics and Epidemiology, School of Public Health, Sun Yat-sen University, Guangzhou, China,*Correspondence: Yuantao Hao
| | - Guoyou Qin
- Shanghai Institute of Infectious Disease and Biosecurity, Shanghai, China,Guoyou Qin
| | - Yongfu Yu
- Department of Biostatistics, School of Public Health, The Key Laboratory of Public Health Safety of Ministry of Education, Fudan University, Shanghai, China,Yongfu Yu
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Birhanu MM, Zaman SB, Thrift AG, Evans RG, Zengin A. Risk factors for incident cardiovascular events among adults in low- and middle-income countries: A systematic review and meta-analysis of prospective cohort studies. Prev Med 2022; 158:107036. [PMID: 35358600 DOI: 10.1016/j.ypmed.2022.107036] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/05/2021] [Revised: 03/03/2022] [Accepted: 03/21/2022] [Indexed: 10/18/2022]
Abstract
The relative contributions of risk factors for cardiovascular events at a population level has received little attention in low- and middle-income countries (LMICs). We estimated the population attributable fraction (PAF) of risk factors associated with incident cardiovascular events in LMICs. We searched six databases for relevant articles, supplemented with a manual search of reference lists. Articles included in the meta-analyses were those based on prospective community-based cohorts and incorporating adjusted hazard ratios (HR) or relative risks with 95% confidence intervals (95% CI) for associations between risk factors and a composite cardiovascular and/or stroke endpoint. Pooled HRs and 95% CI were calculated using the random effects model. We assessed heterogeneity using the I2 test and study quality using the Newcastle-Ottawa Scale. We calculated the PAF of each associated risk factor. The protocol was registered in PROSPERO (CRD42019122741). We identified 18 cohorts from LMICs with 1,125,846 participants, 77,045 composite cardiovascular events and 42,216 strokes. Substantial proportions of incident cardiovascular events were attributable to hypertension (HR [95% CI], 2.23 [2.01-2.48], PAF = 28%); current smoking (1.44 [1.31-1.58], PAF = 10%); and diabetes mellitus (1.93 [1.67-2.23], PAF = 8%). Other risk factors identified included number of children, depression, bone mineral density, and air pollution. A substantial proportion of incident cardiovascular events were linked to traditional metabolic and behavioural modifiable risk factors. However, other novel risk factors also appear to contribute. Targeting of these established and novel risk factors has the potential to reduce the burden of CVD in LMICs.
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Affiliation(s)
- Mulugeta Molla Birhanu
- Department of Medicine, School of Clinical Sciences at Monash Health, Monash University, Melbourne, Victoria, Australia
| | - Sojib Bin Zaman
- Department of Medicine, School of Clinical Sciences at Monash Health, Monash University, Melbourne, Victoria, Australia
| | - Amanda G Thrift
- Department of Medicine, School of Clinical Sciences at Monash Health, Monash University, Melbourne, Victoria, Australia.
| | - Roger G Evans
- Cardiovascular Disease Program, Biomedicine Discovery Institute and Department of Physiology, Monash University, Melbourne, Victoria, Australia; Pre-clinical Critical Care Unit, Florey Institute of Neuroscience and Mental Health, University of Melbourne, Melbourne, Victoria, Australia
| | - Ayse Zengin
- Department of Medicine, School of Clinical Sciences at Monash Health, Monash University, Melbourne, Victoria, Australia.
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Smoking, Blood Pressure, and Cardiovascular Disease Mortality in a Large Cohort of Chinese Men with 15 Years Follow-up. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2018; 15:ijerph15051026. [PMID: 29783678 PMCID: PMC5982065 DOI: 10.3390/ijerph15051026] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/23/2018] [Revised: 05/13/2018] [Accepted: 05/14/2018] [Indexed: 11/16/2022]
Abstract
BACKGROUND To examine the joint effects of smoking and blood pressure on the risk of mortality from cardiovascular disease (CVD) in a cohort of Chinese men. METHODS This study followed a cohort of 213,221 men over 40 years of age who were recruited from 45 district/counties across China between 1990⁻1991, and whose cause-specific mortality was examined for 15 years, up to 31 December 2005. We calculated hazard ratios for all-cause mortality and CVD, ischemic heart disease (IHD), and stroke mortality for the combined sets of smoking status and blood pressure levels using the Cox proportional hazard model, adjusting for potential individual-level and contextual-level risk factors. RESULTS During the 15 years of follow-up, 52,795 deaths occurred, including 18,833 deaths from CVD, 3744 deaths from IHD, and 11,288 deaths from stroke. The risk of mortality from CVD, IHD, and stroke increased significantly, with increased systolic blood pressure (SBP), diastolic blood pressure (DBP), and with more pack years of smoking. Compared with never-smokers with normal blood pressure, the hazard ratios and 95% CI of CVD, IHD, and stroke mortality for those who smoked over 20 pack years with hypertension were remarkably increased to 2.30 (95% CI: 2.12⁻2.50), 1.78 (95% CI: 1.48⁻2.14), and 2.74 (95% CI: 2.45⁻3.07), respectively. CONCLUSION There was a combined effect on the risk of CVD, IHD, and stroke mortality between smoking and hypertension. The joint efforts on smoking cessation and lowered blood pressure should be made to prevent cardiovascular disease mortality in Chinese men.
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Lai YJ, Chen HC, Chou P. Gender Difference in the Interaction Effects of Diabetes and Hypertension on Stroke among the Elderly in the Shih-Pai Study, Taiwan. PLoS One 2015; 10:e0136634. [PMID: 26322779 PMCID: PMC4554728 DOI: 10.1371/journal.pone.0136634] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2015] [Accepted: 08/06/2015] [Indexed: 02/06/2023] Open
Abstract
Aims To investigate the interaction effects of diabetes and hypertension on stroke, and also investigate the independent and interaction effects of parental history and environmental factors on diabetes and hypertension in a cross-sectional elderly population. Methods The Shih-Pai Community Medical Service Program was a community-based, fixed cohort study conducted between June 1999 and November 2002. Socio-demographic and clinical data of subjects aged 65 years and older were collected by well-trained interviewers during home visits. Interaction effects were analyzed using Rothman’s synergy index (SI). Results In total, 4,124 subjects were included in the study, with 2,284 males and 1,840 females. The synergistic interaction of diabetes and hypertension on stroke was statistically significant in women (SI = 3.16, 95% CI: 1.35–7.39). The synergistic interaction of parental diabetes and being overweight on diabetes was only statistically significant in men, and not in women (SI = 3.30, 95% CI: 1.00–10.83 in men, and SI = 1.15, 95% CI: 0.30–4.39 in women). Conclusions A synergistic interaction was found for diabetes and hypertension in both sexes when parental history and being overweight were combined. Furthermore, combining diabetes and hypertension in elderly women was significant in terms of the risk of stroke. Strategies to control risk factors in individuals at additional high risk are urgently needed.
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Affiliation(s)
- Yun-Ju Lai
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Puli Branch of Taichung Veterans General Hospital, Nantou, Taiwan
- Institute of Public Health and Community Medicine Research Center, National Yang-Ming University, Taipei, Taiwan
- School of Medicine, National Yang-Ming University, Taipei, Taiwan
| | - Hsi-Chung Chen
- Department of Psychiatry and Center of Sleep Disorders, National Taiwan University Hospital, Taipei, Taiwan
| | - Pesus Chou
- Institute of Public Health and Community Medicine Research Center, National Yang-Ming University, Taipei, Taiwan
- * E-mail:
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Kim MS, Kim HJ, Choi JE, Kim SJ, Chang SO. Nursing home nurses conceptualize how to care for residents with cardiac vulnerability. Nurs Crit Care 2015; 22:329-338. [PMID: 25808590 DOI: 10.1111/nicc.12132] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2014] [Revised: 06/10/2014] [Accepted: 08/11/2014] [Indexed: 12/01/2022]
Abstract
BACKGROUND With ageing, older people face cardiovascular problems as the major cause of disability and death. Although immediate medical attention is a major factor in determining outcomes of cardiac problems, lack of personnel (i.e. registered nurse, certified nursing assistant and home care aide) in nursing homes without residing doctor limits the awareness of such problems, thus making it difficult to initiate timely and appropriate intervention. AIM The aim of this study was to conceptualize critical care for nursing home residents with cardiac vulnerability and develop practical knowledge in nursing practice. METHODS Conventional content analysis was performed on date from interviews with 30 nurses from 10 nursing homes in South Korea between July and November 2010. RESULTS The analysis revealed three major cardiac problems resulting from residents' cardiac vulnerability: angina, myocardial infarction (MI) and cardiogenic shock. Through content analysis, we extracted 6 themes and 21 subthemes for nurses' conceptualization of critical care for nursing home residents with cardiac vulnerability. In nursing homes without a residing doctor, nurses assessed the physical, functional and cognitive conditions along with the responses and symptoms of residents when emergency situations related to the cardiac problems occurred. Moreover, with a lack of infrastructures of a hospital, nurses provided critical care to the elderly by using personal practice strategies based on their personal experience in facilities along with practical knowledge of nurses while following the management principles of emergencies. CONCLUSIONS AND RELEVANCE TO CLINICAL PRACTICE We found that nurses conceptualized critical nursing care for cardiac problems at nursing homes, which are different from those of general hospitals. The results of this study will provide basis for the development of care guidelines and educational materials that can be used by novice nurses or nursing students.
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Affiliation(s)
- Mi So Kim
- College of Nursing, Korea University, Seoul, Republic of Korea
| | - Hyun Ju Kim
- College of Nursing, Korea University, Seoul, Republic of Korea
| | - Jung Eun Choi
- Operation Room, Korea University Anam Hospital, Seoul, Republic of Korea
| | - Su Jin Kim
- Baekseok Culture University College of Nursing, Cheonan, Republic of Korea
| | - Sung Ok Chang
- College of Nursing, Korea University, Seoul, Republic of Korea
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