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Iso H, Cui R, Takamoto I, Kiyama M, Saito I, Okamura T, Miyamoto Y, Higashiyama A, Kiyohara Y, Ninomiya T, Yamada M, Nakagawa H, Sakurai M, Shimabukuro M, Higa M, Shimamoto K, Saito S, Daimon M, Kayama T, Noda M, Ito S, Yokote K, Ito C, Nakao K, Yamauchi T, Kadowaki T. Risk Classification for Metabolic Syndrome and the Incidence of Cardiovascular Disease in Japan With Low Prevalence of Obesity: A Pooled Analysis of 10 Prospective Cohort Studies. J Am Heart Assoc 2021; 10:e020760. [PMID: 34796738 PMCID: PMC9075363 DOI: 10.1161/jaha.121.020760] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Background It is uncertain whether risk classification under the nationwide program on screening and lifestyle modification for metabolic syndrome captures well high‐risk individuals who could benefit from lifestyle interventions. We examined the validity of risk classification by linking the incidence of cardiovascular disease (CVD). Methods and Results Individual‐level data of 29 288 Japanese individuals aged 40 to 74 years without a history of CVD from 10 prospective cohort studies were used. Metabolic syndrome was defined as the presence of high abdominal obesity and/or overweight plus risk factors such as high blood pressure, high triglyceride or low high‐density lipoprotein cholesterol levels, and high blood glucose levels. The risk categories for lifestyle intervention were information supply only, motivation‐support intervention, and intensive support intervention. Sex‐ and age‐specific hazard ratios and population attributable fractions of CVD, which were also further adjusted to consider non–high density lipoprotein cholesterol levels, were estimated with reference to nonobese/overweight individuals, using Cox proportional hazard regression. Since the reference category included those with risk factors, we set a supernormal group (nonobese/overweight with no risk factor) as another reference. We documented 1023 incident CVD cases (565 men and 458 women). The adjusted CVD risk was 60% to 70% higher in men and women aged 40 to 64 years receiving an intensive support intervention, and 30% higher in women aged 65 to 74 years receiving a motivation‐support intervention, compared with nonobese/overweight individuals. The population attributable fractions in men and women aged 40 to 64 years receiving an intensive support intervention were 17.7% and 6.6%, respectively, while that in women aged 65 to 74 years receiving a motivation‐support intervention was 9.4%. Compared with the supernormal group, nonobese/overweight individuals with risk factors had similar hazard ratios and population attributable fractions as individuals with metabolic syndrome. Conclusions Similar CVD excess and attributable risks among individuals with metabolic syndrome components in the absence and presence of obesity/overweight imply the need for lifestyle modification in both high‐risk groups.
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Affiliation(s)
- Hiroyasu Iso
- Public Health Department of Social Medicine Osaka University Graduate School of Medicine Osaka Japan
| | - Renzhe Cui
- Public Health Department of Social Medicine Osaka University Graduate School of Medicine Osaka Japan
| | - Iseki Takamoto
- Department of Diabetes and Metabolic Diseases Graduate School of Medicine The University of Tokyo Hospital Tokyo Japan.,Department of Diabetes, Metabolism and Endocrinology Ichikawa Hospital International University of Health and Welfare Chiba Japan
| | - Masahiko Kiyama
- Osaka Center for Cancer and Cardiovascular Disease Prevention Osaka Japan
| | - Isao Saito
- Department of Public Health and Epidemiology Faculty of Medicine Oita University Oita Japan
| | - Tomonori Okamura
- Department of Preventive Medicine and Public Health Keio University School of Medicine Tokyo Japan
| | - Yoshihiro Miyamoto
- Preventive Cardiology National Cerebral and Cardiovascular Center Osaka Japan
| | - Aya Higashiyama
- Preventive Cardiology National Cerebral and Cardiovascular Center Osaka Japan
| | - Yutaka Kiyohara
- Hisayama Research Institute for Lifestyle Diseases Fukuoka Japan.,Department of Epidemiology and Public Health Graduate School of Medicine Kyushu University Fukuoka Japan
| | - Toshiharu Ninomiya
- Department of Epidemiology and Public Health Graduate School of Medicine Kyushu University Fukuoka Japan
| | - Michiko Yamada
- Department of Clinical Studies Radiation Effects Research Foundation Hiroshima Japan
| | - Hideaki Nakagawa
- Department of Social and Environmental Medicine Kanazawa Medical University Ishikawa Japan
| | - Masaru Sakurai
- Department of Social and Environmental Medicine Kanazawa Medical University Ishikawa Japan
| | - Michio Shimabukuro
- Department of Diabetes, Endocrinology and Metabolism Fukushima Medical University Fukushima Japan
| | - Moritake Higa
- Diabetes and Life-Style Related Disease Center Tomishiro Central Hospital Okinawa Japan
| | | | | | - Makoto Daimon
- Global Center of Excellence Program Study Group Yamagata University School of Medicine Yamagata Japan.,Department of Endocrinology and Metabolism Hirosaki University Graduate School of Medicine Aomori Japan
| | - Takamasa Kayama
- Department of Advanced Medicine Yamagata University School of Medicine Yamagata Japan
| | - Mitsuhiko Noda
- Department of Diabetes, Metabolism and Endocrinology Ichikawa Hospital International University of Health and Welfare Chiba Japan
| | - Sadayoshi Ito
- Division of Nephrology, Endocrinology and Vascular Medicine Department of Medicine Tohoku University Hospital Miyagi Japan
| | - Koutaro Yokote
- Department of Endocrinology, Hematology and Gerontology Graduate School of Medicine Chiba University Chiba Japan
| | - Chikako Ito
- Grand Tower Medical Court Life Care Clinic Hiroshima Japan
| | - Kazuwa Nakao
- Medical Innovation Center Kyoto University Graduate School of Medicine Kyoto Japan
| | - Toshimasa Yamauchi
- Department of Diabetes and Metabolic Diseases Graduate School of Medicine The University of Tokyo Hospital Tokyo Japan
| | - Takashi Kadowaki
- Department of Diabetes and Metabolic Diseases Graduate School of Medicine The University of Tokyo Hospital Tokyo Japan.,President Tranomon Hospital Tokyo Japan
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Yamagishi K, Muraki I, Kubota Y, Hayama-Terada M, Imano H, Cui R, Umesawa M, Shimizu Y, Sankai T, Okada T, Sato S, Kitamura A, Kiyama M, Iso H. The Circulatory Risk in Communities Study (CIRCS): A Long-Term Epidemiological Study for Lifestyle-Related Disease Among Japanese Men and Women Living in Communities. J Epidemiol 2018; 29:83-91. [PMID: 30584233 PMCID: PMC6375812 DOI: 10.2188/jea.je20180196] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
The Circulatory Risk in Communities Study (CIRCS) is an ongoing community-based epidemiological study of lifestyle-related disease involving dynamic prospective cohorts of approximately 12,000 adults from five communities of Japan: Ikawa, Ishizawa and Kita-Utetsu (Akita Prefecture), Minami-Takayasu (Osaka Prefecture), Noichi (Kochi Prefecture), and Kyowa (Ibaraki Prefecture). One of the most notable features of CIRCS is that it is not only an observational cohort study to identify risk factors for cardiovascular diseases (CVD), such as stroke, coronary heart disease, and sudden cardiac death, but it also involves prevention programs for CVD. Using basic, clinical, epidemiological, and statistical techniques, CIRCS has clarified characteristics of CVD and the related risk factors to develop specific methodologies towards CVD prevention in Japanese middle-aged or older adults for more than half a century.
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Affiliation(s)
- Kazumasa Yamagishi
- Department of Public Health Medicine, Faculty of Medicine, and Health Services Research and Development Center, University of Tsukuba.,Osaka Center for Cancer and Cardiovascular Disease Prevention
| | - Isao Muraki
- Osaka Center for Cancer and Cardiovascular Disease Prevention.,Public Health, Department of Social Medicine, Osaka University Graduate School of Medicine
| | - Yasuhiko Kubota
- Osaka Center for Cancer and Cardiovascular Disease Prevention
| | - Mina Hayama-Terada
- Osaka Center for Cancer and Cardiovascular Disease Prevention.,Yao Public Health Center, Yao City Office
| | - Hironori Imano
- Osaka Center for Cancer and Cardiovascular Disease Prevention.,Public Health, Department of Social Medicine, Osaka University Graduate School of Medicine
| | - Renzhe Cui
- Public Health, Department of Social Medicine, Osaka University Graduate School of Medicine
| | - Mitsumasa Umesawa
- Department of Public Health Medicine, Faculty of Medicine, and Health Services Research and Development Center, University of Tsukuba.,Osaka Center for Cancer and Cardiovascular Disease Prevention.,Department of Public Health, Dokkyo Medical University
| | - Yuji Shimizu
- Osaka Center for Cancer and Cardiovascular Disease Prevention
| | - Tomoko Sankai
- Department of Public Health and Nursing, Faculty of Medicine, University of Tsukuba
| | - Takeo Okada
- Osaka Center for Cancer and Cardiovascular Disease Prevention
| | | | - Akihiko Kitamura
- Osaka Center for Cancer and Cardiovascular Disease Prevention.,Research Team for Social Participation and Community Health, Tokyo Metropolitan Institute of Gerontology
| | - Masahiko Kiyama
- Osaka Center for Cancer and Cardiovascular Disease Prevention
| | - Hiroyasu Iso
- Department of Public Health Medicine, Faculty of Medicine, and Health Services Research and Development Center, University of Tsukuba.,Osaka Center for Cancer and Cardiovascular Disease Prevention.,Public Health, Department of Social Medicine, Osaka University Graduate School of Medicine
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3
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Lara J, Evans EH, O’Brien N, Moynihan PJ, Meyer TD, Adamson AJ, Errington L, Sniehotta FF, White M, Mathers JC. Association of behaviour change techniques with effectiveness of dietary interventions among adults of retirement age: a systematic review and meta-analysis of randomised controlled trials. BMC Med 2014; 12:177. [PMID: 25288375 PMCID: PMC4198739 DOI: 10.1186/s12916-014-0177-3] [Citation(s) in RCA: 74] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/22/2014] [Accepted: 09/09/2014] [Indexed: 02/08/2023] Open
Abstract
BACKGROUND There is a need for development of more effective interventions to achieve healthy eating, enhance healthy ageing, and to reduce the risk of age-related diseases. The aim of this study was to identify the behaviour change techniques (BCTs) used in complex dietary behaviour change interventions and to explore the association between BCTs utilised and intervention effectiveness. METHODS We undertook a secondary analysis of data from a previous systematic review with meta-analysis of the effectiveness of dietary interventions among people of retirement age. BCTs were identified using the reliable CALO-RE taxonomy in studies reporting fruit and vegetable (F and V) consumption as outcomes. The mean difference in F and V intake between active and control arms was compared between studies in which the BCTs were identified versus those not using the BCTs. Random-effects meta-regression models were used to assess the association of interventions BCTs with F and V intakes. RESULTS Twenty-eight of the 40 BCTs listed in the CALO-RE taxonomy were identified in the 22 papers reviewed. Studies using the techniques 'barrier identification/problem solving' (93 g, 95% confidence interval (CI) 48 to 137 greater F and V intake), 'plan social support/social change' (78 g, 95%CI 24 to 132 greater F and V intake), 'goal setting (outcome)' (55 g 95%CI 7 to 103 greater F and V intake), 'use of follow-up prompts' (66 g, 95%CI 10 to 123 greater F and V intake) and 'provide feedback on performance' (39 g, 95%CI -2 to 81 greater F and V intake) were associated with greater effects of interventions on F and V consumption compared with studies not using these BCTs. The number of BCTs per study ranged from 2 to 16 (median = 6). Meta-regression showed that one additional BCT led to 8.3 g (95%CI 0.006 to 16.6 g) increase in F and V intake. CONCLUSIONS Overall, this study has identified BCTs associated with effectiveness suggesting that these might be active ingredients of dietary interventions which will be effective in increasing F and V intake in older adults. For interventions targeting those in the peri-retirement age group, 'barrier identification/problem solving' and 'plan for social support/social change' may be particularly useful in increasing the effectiveness of dietary interventions.
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Affiliation(s)
- Jose Lara
- />Human Nutrition Research Centre, Newcastle University, Biomedical Research Building, Campus for Ageing and Vitality, Newcastle upon Tyne, NE4 5PL UK
- />Institute of Cellular Medicine, Newcastle University, Newcastle, UK
| | - Elizabeth H Evans
- />Institute of Health and Society, Newcastle University, Newcastle, UK
| | - Nicola O’Brien
- />Institute of Health and Society, Newcastle University, Newcastle, UK
| | - Paula J Moynihan
- />Human Nutrition Research Centre, Newcastle University, Biomedical Research Building, Campus for Ageing and Vitality, Newcastle upon Tyne, NE4 5PL UK
- />Institute of Health and Society, Newcastle University, Newcastle, UK
- />Centre for Oral Health Research, Newcastle University, Newcastle, UK
| | - Thomas D Meyer
- />Department of Psychiatry & Behavioral Sciences, University of Texas Health Science Center, Houston, TX USA
| | - Ashley J Adamson
- />Human Nutrition Research Centre, Newcastle University, Biomedical Research Building, Campus for Ageing and Vitality, Newcastle upon Tyne, NE4 5PL UK
- />Institute of Health and Society, Newcastle University, Newcastle, UK
| | | | - Falko F Sniehotta
- />Institute of Health and Society, Newcastle University, Newcastle, UK
- />Fuse, UKCRC Centre for Translational Research in Public Health, Newcastle, UK
| | - Martin White
- />Human Nutrition Research Centre, Newcastle University, Biomedical Research Building, Campus for Ageing and Vitality, Newcastle upon Tyne, NE4 5PL UK
- />Institute of Health and Society, Newcastle University, Newcastle, UK
- />Fuse, UKCRC Centre for Translational Research in Public Health, Newcastle, UK
| | - John C Mathers
- />Human Nutrition Research Centre, Newcastle University, Biomedical Research Building, Campus for Ageing and Vitality, Newcastle upon Tyne, NE4 5PL UK
- />Institute of Cellular Medicine, Newcastle University, Newcastle, UK
- />Centre for Brain Ageing and Vitality, Newcastle University, Newcastle, UK
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4
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Rees K, Dyakova M, Wilson N, Ward K, Thorogood M, Brunner E. Dietary advice for reducing cardiovascular risk. Cochrane Database Syst Rev 2013; 2013:CD002128. [PMID: 24318424 PMCID: PMC9993221 DOI: 10.1002/14651858.cd002128.pub5] [Citation(s) in RCA: 57] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
BACKGROUND Changes in population diet are likely to reduce cardiovascular disease and cancer, but the effect of dietary advice is uncertain. This review is an update of a previous review published in 2007. OBJECTIVES To assess the effects of providing dietary advice to achieve sustained dietary changes or improved cardiovascular risk profile among healthy adults. SEARCH METHODS We searched the Cochrane Central Register of Controlled Trials, the Database of Abstracts of Reviews of Effects (DARE) and the HTA database on The Cochrane Library (Issue 4, 2010). We searched MEDLINE (Ovid) (1950 to week 2 October 2010) and EMBASE (Ovid) (1980 to Week 42 2010). Additional searches were done on CAB Health (1972 to December 1999), CVRCT registry (2000), CCT (2000) and SIGLE (1980 to 2000). Dissertation abstracts and reference lists of articles were checked and researchers were contacted. SELECTION CRITERIA Randomised studies with no more than 20% loss to follow-up, lasting at least three months and involving healthy adults comparing dietary advice with no advice or minimal advice. Trials involving children, trials to reduce weight or those involving supplementation were excluded. DATA COLLECTION AND ANALYSIS Two review authors independently assessed trial quality and extracted data. Study authors were contacted for additional information. MAIN RESULTS Forty-four trials with 52 intervention arms (comparisons) comparing dietary advice with no advice were included in the review; 18,175 participants or clusters were randomised. Twenty-nine of the 44 included trials were conducted in the USA. Dietary advice reduced total serum cholesterol by 0.15 mmol/L (95% CI 0.06 to 0.23) and LDL cholesterol by 0.16 mmol/L (95% CI 0.08 to 0.24) after 3 to 24 months. Mean HDL cholesterol levels and triglyceride levels were unchanged. Dietary advice reduced blood pressure by 2.61 mm Hg systolic (95% CI 1.31 to 3.91) and 1.45 mm Hg diastolic (95% CI 0.68 to 2.22) and 24-hour urinary sodium excretion by 40.9 mmol (95% CI 25.3 to 56.5) after 3 to 36 months but there was heterogeneity between trials for the latter outcome. Three trials reported plasma antioxidants, where small increases were seen in lutein and β-cryptoxanthin, but there was heterogeneity in the trial effects. Self-reported dietary intake may be subject to reporting bias, and there was significant heterogeneity in all the following analyses. Compared to no advice, dietary advice increased fruit and vegetable intake by 1.18 servings/day (95% CI 0.65 to 1.71). Dietary fibre intake increased with advice by 6.5 g/day (95% CI 2.2 to 10.82), while total dietary fat as a percentage of total energy intake fell by 4.48% (95% CI 2.47 to 6.48) with dietary advice, and saturated fat intake fell by 2.39% (95% CI 1.4 to 3.37).Two trials analysed incident cardiovascular disease (CVD) events (TOHP I/II). Follow-up was 77% complete at 10 to 15 years after the end of the intervention period and estimates of event rates lacked precision but suggested that sodium restriction advice probably led to a reduction in cardiovascular events (combined fatal plus non-fatal events) plus revascularisation (TOHP I hazards ratio (HR) 0.59, 95% CI 0.33 to 1.08; TOHP II HR 0.81, 95% CI 0.59 to 1.12). AUTHORS' CONCLUSIONS Dietary advice appears to be effective in bringing about modest beneficial changes in diet and cardiovascular risk factors over approximately 12 months, but longer-term effects are not known.
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Affiliation(s)
- Karen Rees
- Warwick Medical School, University of WarwickDivision of Health SciencesCoventryUKCV4 7AL
| | - Mariana Dyakova
- Warwick Medical School, University of WarwickDivision of Health SciencesCoventryUKCV4 7AL
| | - Nicola Wilson
- Warwick Medical School, University of WarwickDivision of Health SciencesCoventryUKCV4 7AL
| | - Kirsten Ward
- King's College LondonDepartment of Twin Research & Genetic EpidemiologySt. Thomas' Hospital Campus4th Floor, South Wing, Block DLondonUKSE1 7EH
| | - Margaret Thorogood
- Division of Health SciencesPublic Health and EpidemiologyWarwick Medical School, University of WarwickGibbet HillCoventryUKCV4 7AL
| | - Eric Brunner
- University College London Medical SchoolDepartment of Epidemiology and Public Health1‐19 Torrington PlaceLondonUKWC1E 6BT
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5
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Abstract
BACKGROUND Changes in population diet are likely to reduce cardiovascular disease and cancer, but the effect of dietary advice is uncertain. This review is an update of a previous review published in 2007. OBJECTIVES To assess the effects of providing dietary advice to achieve sustained dietary changes or improved cardiovascular risk profile among healthy adults. SEARCH METHODS We searched the Cochrane Central Register of Controlled Trials, the Database of Abstracts of Reviews of Effects (DARE) and the HTA database on The Cochrane Library (Issue 4, 2010). We searched MEDLINE (Ovid) (1950 to week 2 October 2010) and EMBASE (Ovid) (1980 to Week 42 2010). Additional searches were done on CAB Health (1972 to December 1999), CVRCT registry (2000), CCT (2000) and SIGLE (1980 to 2000). Dissertation abstracts and reference lists of articles were checked and researchers were contacted. SELECTION CRITERIA Randomised studies with no more than 20% loss to follow-up, lasting at least three months and involving healthy adults comparing dietary advice with no advice or minimal advice. Trials involving children, trials to reduce weight or those involving supplementation were excluded. DATA COLLECTION AND ANALYSIS Two review authors independently assessed trial quality and extracted data. Study authors were contacted for additional information. MAIN RESULTS Forty-four trials with 52 intervention arms (comparisons) comparing dietary advice with no advice were included in the review; 18,175 participants or clusters were randomised. Twenty-nine of the 44 included trials were conducted in the USA. Dietary advice reduced total serum cholesterol by 0.15 mmol/L (95% CI 0.06 to 0.23) and LDL cholesterol by 0.16 mmol/L (95% CI 0.08 to 0.24) after 3 to 24 months. Mean HDL cholesterol levels and triglyceride levels were unchanged. Dietary advice reduced blood pressure by 2.61 mm Hg systolic (95% CI 1.31 to 3.91) and 1.45 mm Hg diastolic (95% CI 0.68 to 2.22) and 24-hour urinary sodium excretion by 40.9 mmol (95% CI 25.3 to 56.5) after 3 to 36 months but there was heterogeneity between trials for the latter outcome. Three trials reported plasma antioxidants, where small increases were seen in lutein and β-cryptoxanthin, but there was heterogeneity in the trial effects. Self-reported dietary intake may be subject to reporting bias, and there was significant heterogeneity in all the following analyses. Compared to no advice, dietary advice increased fruit and vegetable intake by 1.18 servings/day (95% CI 0.65 to 1.71). Dietary fibre intake increased with advice by 6.5 g/day (95% CI 2.2 to 10.82), while total dietary fat as a percentage of total energy intake fell by 4.48% (95% CI 2.47 to 6.48) with dietary advice, and saturated fat intake fell by 2.39% (95% CI 1.4 to 3.37).Two trials analysed incident cardiovascular disease (CVD) events (TOHP I/II). Follow-up was 77% complete at 10 to 15 years after the end of the intervention period and estimates of event rates lacked precision but suggested that sodium restriction advice probably led to a reduction in cardiovascular events (combined fatal plus non-fatal events) plus revascularisation (TOHP I hazards ratio (HR) 0.59, 95% CI 0.33 to 1.08; TOHP II HR 0.81, 95% CI 0.59 to 1.12). AUTHORS' CONCLUSIONS Dietary advice appears to be effective in bringing about modest beneficial changes in diet and cardiovascular risk factors over approximately 12 months, but longer-term effects are not known.
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Affiliation(s)
- Karen Rees
- Division of Health Sciences, Warwick Medical School, University of Warwick, Coventry, UK
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6
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Okayama A, Chiba N, Ueshima H. Non-pharmacological intervention study of hypercholesterolemia among middle-aged people. Environ Health Prev Med 2012; 9:165-9. [PMID: 21432327 DOI: 10.1007/bf02898096] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2004] [Accepted: 05/17/2004] [Indexed: 10/21/2022] Open
Abstract
Middle-aged people with a serum total cholesterol of more than 220 mg/dl at the latest health examination (n=197) at a chemical company were invited to join a health education program for 6 months. Participants meeting inclusion criteria were randomly assigned to an intervention (n=96) and a control group (n=92). Periodical interviews and blood tests were performed every 2 months for both groups. The intervention group was educated by health professionals in the factories through programs developed for hypercholesterolemia. After a 6-month intervention, the reduction of cholesterol levels and the differences between the groups were analysed.The mean total cholesterol (TCH) levels at the baseline measurement were 239.7 mg/dl in the intervention group and 236.5 mg/dl in the control group. During the intervention period, decreased levels of TCH were 27.1 mg/dl for the intervention group and 18.5 mg/dl for the control group. Declines in body weight, TCH and triglyceride levels in the intervention group were significantly larger than those in the control group. The decline of apoprotein-B was also significantly larger in the intervention group while high-density lipoprotein cholesterol levels essentially did not change.The health education by health professionals proved to be useful in reducing the risk factor levels for coronary heart disease. These results suggest that health education would also be useful against other major risk factors in cardiovascular diseases.
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Affiliation(s)
- Akira Okayama
- Department of Preventive Cardiology, National Cardiovascular Center, Fijishirodai, 5-7-1, 565-8565, Suita, Japan,
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7
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Okamura T, Tanaka T, Takebayashi T, Nakagawa H, Yamato H, Yoshita K, Kadowaki T, Okayama A, Ueshima H. Methodological issues for a large-scale intervention trial of lifestyle modification: Interim assessment of the high-risk and population strategy for occupational health promotion (HIPOP-OHP) study. Environ Health Prev Med 2012; 9:137-43. [PMID: 21432323 DOI: 10.1007/bf02898092] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2004] [Accepted: 04/21/2004] [Indexed: 11/30/2022] Open
Abstract
OBJECTIVE To clarify the methodological issues for the High-risk and population Strategy for Occupational Health Promotion Study (HIPOP-OHP study), which is a 4-year non-randomized control trial, an interim assessment of male participants was performed 3 years after the baseline survey. METHODS We had approximately 2,500 and 4,000 participants in the intervention and control groups, respectively. The population measures and prevalence of risk factors at each year, and between the baseline and 4th examinations were compared between the two groups. The personal trends of returning participants who were in the study at the 1(st) and 4(th) examinations were also evaluated. RESULTS During the 3 years, an increase in serum HDL cholesterol (2.7 mg/dl), and a reduction in the prevalence of hypertriglycemia detected with fasting blood samples (3.6%) and current smokers (5.4%) were observed in the intervention group. The mean HDL cholesterol level was significantly higher in the intervention group than in the control group at the 4th examination, reversed from the baseline survey. The serum non-HDL cholesterol level was significantly increased only in the control group. There was also a significant increase in the prevalence of hypertriglycemia nad high plasma glucose detected with fasting blood samples in the control group. The return participation rate after 3 years was 72.2% for the intervention group and 74.9% for the control group. The above-mentioned changes for risk factors were mainly due to returning participants at each examination. CONCLUSION These interventional methods may be effective in improving overall cardiovascular risk factors in the population. However, the low return participation rate will dilute the effect of the intervention.
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Affiliation(s)
- Tomonori Okamura
- Department of Health Science, Shiga University of Medical Science Seta, Tsukinewa-cho, 520-2192, Otsu, Japan,
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8
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Ebrahim S, Taylor F, Ward K, Beswick A, Burke M, Davey Smith G. Multiple risk factor interventions for primary prevention of coronary heart disease. Cochrane Database Syst Rev 2011:CD001561. [PMID: 21249647 DOI: 10.1002/14651858.cd001561.pub3] [Citation(s) in RCA: 179] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
BACKGROUND Multiple risk factor interventions using counselling and educational methods assumed to be efficacious and cost-effective in reducing coronary heart disease (CHD) mortality and morbidity and that they should be expanded. Trials examining risk factor changes have cast doubt on the effectiveness of these interventions. OBJECTIVES To assess the effects of multiple risk factor interventions for reducing total mortality, fatal and non-fatal events from CHD and cardiovascular risk factors among adults assumed to be without prior clinical evidence CHD.. SEARCH STRATEGY We updated the original search BY SEARCHING CENTRAL (2006, Issue 2), MEDLINE (2000 to June 2006) and EMBASE (1998 to June 2006), and checking bibliographies. SELECTION CRITERIA Randomised controlled trials of more than six months duration using counselling or education to modify more than one cardiovascular risk factor in adults from general populations, occupational groups or specific risk factors (i.e. diabetes, hypertension, hyperlipidaemia, obesity). DATA COLLECTION AND ANALYSIS Two authors extracted data independently. We expressed categorical variables as odds ratios (OR) with 95% confidence intervals (CI). Where studies published subsequent follow-up data on mortality and event rates, we updated these data. MAIN RESULTS We found 55 trials (163,471 participants) with a median duration of 12 month follow up. Fourteen trials (139,256 participants) with reported clinical event endpoints, the pooled ORs for total and CHD mortality were 1.00 (95% CI 0.96 to 1.05) and 0.99 (95% CI 0.92 to 1.07), respectively. Total mortality and combined fatal and non-fatal cardiovascular events showed benefits from intervention when confined to trials involving people with hypertension (16 trials) and diabetes (5 trials): OR 0.78 (95% CI 0.68 to 0.89) and OR 0.71 (95% CI 0.61 to 0.83), respectively. Net changes (weighted mean differences) in systolic and diastolic blood pressure (53 trials) and blood cholesterol (50 trials) were -2.71 mmHg (95% CI -3.49 to -1.93), -2.13 mmHg (95% CI -2.67 to -1.58 ) and -0.24 mmol/l (95% CI -0.32 to -0.16), respectively. The OR for reduction in smoking prevalence (20 trials) was 0.87 (95% CI 0.75 to 1.00). Marked heterogeneity (I(2) > 85%) for all risk factor analyses was not explained by co-morbidities, allocation concealment, use of antihypertensive or cholesterol-lowering drugs, or by age of trial. AUTHORS' CONCLUSIONS Interventions using counselling and education aimed at behaviour change do not reduce total or CHD mortality or clinical events in general populations but may be effective in reducing mortality in high-risk hypertensive and diabetic populations. Risk factor declines were modest but owing to marked unexplained heterogeneity between trials, the pooled estimates are of dubious validity. Evidence suggests that health promotion interventions have limited use in general populations.
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Affiliation(s)
- Shah Ebrahim
- Department of Epidemiology and Population Health, London School of Hygiene and Tropical Medicine, Keppel Street, London, UK, WC1E 7HT
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Fujii H, Muto T, Haruyama Y, Nakade M, Kobayashi E, Ishisaki K, Yamasaki A. Community-based lifestyle modification of cardiovascular disease risks in middle-aged Japanese: a 27-month update. TOHOKU J EXP MED 2010; 220:307-18. [PMID: 20410682 DOI: 10.1620/tjem.220.307] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Lifestyle modification is the cornerstone of preventive management for people with cardiovascular disease risks, such as obesity, hypertension, dyslipidemia and diabetes. This study investigated the effect of a 27-month community-based lifestyle intervention on the reduction of cardiovascular disease risks in middle-aged Japanese. Of 549 participants with cardiovascular disease risk factors of overweight, hypertension, dyslipidemia or diabetes enrolled in this non-randomized controlled study, 397 participants aged 39-71 years old completed all 3 serial surveys at baseline, 15 months and 27 months. For the intervention group (39 males and 174 females), 31 specific interventions including individual counselling and group sessions were conducted. The control group (64 males and 120 females) only received 7 newsletters providing health information and results of health checkups. Multiple logistic regression analysis adjusted for sex, each baseline risk category and age category showed that the proportion of those who were overweight or showed dyslipidemia risk were significantly lower in the intervention group only at 27 months [Odds ratio (OR): 0.43 (95% CI 0.20-0.94), OR: 0.43 (95% CI 0.21-0.87), respectively] and the proportion of those showing diabetes risk was significantly lower in the intervention group at both 15 months [OR: 0.42 (95% CI 0.18-0.97)] and 27 months [OR: 0.56 (95% CI 0.32-0.99)]. In conclusion, the 27-month community-based lifestyle modification of cardiovascular disease risks shows significant reductions in risks of diabetes, overweight and dyslipidemia in middle-aged Japanese.
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Affiliation(s)
- Hiroko Fujii
- Department of Public Health, Dokkyo Medical University School of Medicine, Shimotsuga, Tochigi, Japan.
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Fujii H, Haruyama Y, Muto T, Kobayashi E, Ishisaki K, Yamasaki A. High attendance at a lifestyle intervention program is important to reduce risks related to metabolic syndrome in middle-aged Japanese. TOHOKU J EXP MED 2009; 219:155-64. [PMID: 19776533 DOI: 10.1620/tjem.219.155] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Evaluating attendance at health education programs is important to obtain a more comprehensive evaluation of the program impact. This study investigated whether attendance at a lifestyle intervention program in a community setting would reduce risks related to metabolic syndrome. Of 545 subjects with risks related to metabolic syndrome, i.e. overweight, hypertension, dyslipidemia or diabetes, participated in this non-randomized control study, 389 subjects aged 40-71 years completed the surveys at baseline and 27 months. Intervention group (39 males and 168 females) was provided 3 individual counseling plus 28 group sessions conducted monthly on average, whereas control group (64 males and 118 females) received only 7 health information newsletters by mail. Intervention group was subcategorized into two groups according to the median attendance (87.1%): 106 subjects with high attendance (93.8 +/- 4.7%) and 101 subjects with low attendance (68.6 +/- 16.0%). Logistic regression analyses adjusted for age and baseline value showed that among males, the proportion with dyslipidemia risk was lower only in high attendance group compared with that in control group at 27 months [Odds ratio (OR): 0.11 (95%CI 0.02 - 0.51)] and among females, the proportion of overweight was lower only in high attendance group [OR: 0.24 (95%CI 0.07 - 0.81)]. In females, the mean total risk score calculated by adding the number of the 4 risks present decreased only in high attendance group (p < 0.001). In conclusion, high attendance at a lifestyle intervention program impacts the reduction of risks related to metabolic syndrome in a Japanese community setting.
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Affiliation(s)
- Hiroko Fujii
- Department of Public Health, Dokkyo Medical University School of Medicine, Japan.
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Abstract
BACKGROUND Changes in population diet are likely to reduce cardiovascular disease and cancer, but the effect of dietary advice is uncertain. OBJECTIVES To assess the effects of providing dietary advice to achieve sustained dietary changes or improved cardiovascular risk profile among healthy adults. SEARCH STRATEGY We searched the Cochrane Central Register of Controlled Trials, DARE and HTA databases on The Cochrane Library (Issue 4 2006), MEDLINE (1966 to December 2000, 2004 to November 2006) and EMBASE (1985 to December 2000, 2005 to November 2006). Additional searches were done on CAB Health (1972 to December 1999), CVRCT registry (2000), CCT (2000) and SIGLE (1980 to 2000). Dissertation abstracts and reference lists of articles were checked and researchers were contacted. SELECTION CRITERIA Randomised studies with no more than 20% loss to follow-up, lasting at least 3 months involving healthy adults comparing dietary advice with no advice or minimal advice. Trials involving children, trials to reduce weight or those involving supplementation were excluded. DATA COLLECTION AND ANALYSIS Two reviewers independently assessed trial quality and extracted data. Study authors were contacted for additional information. MAIN RESULTS Thirty-eight trials with 46 intervention arms (comparisons) comparing dietary advice with no advice were included in the review. 17,871 participants/clusters were randomised. Twenty-six of the 38 included trials were conducted in the USA. Dietary advice reduced total serum cholesterol by 0.16 mmol/L (95% CI 0.06 to 0.25) and LDL cholesterol by 0.18 mmol/L (95% CI 0.1 to 0.27) after 3-24 months. Mean HDL cholesterol levels and triglyceride levels were unchanged. Dietary advice reduced blood pressure by 2.07 mmHg systolic (95% CI 0.95 to 3.19) and 1.15 mmHg diastolic (95% CI 0.48 to 1.85) and 24-hour urinary sodium excretion by 44.2 mmol (95% CI 33.6 to 54.7) after 3-36 months. Three trials reported plasma antioxidants where small increases were seen in lutein and beta-cryptoxanthin, but there was heterogeneity in the trial effects. Self-reported dietary intake may be subject to reporting bias, and there was significant heterogeneity in all the following analyses. Compared to no advice, dietary advice increased fruit and vegetable intake by 1.25 servings/day (95% CI 0.7 to 1.81). Dietary fibre intake increased with advice by 5.99 g/day (95% CI 1.12 to 10.86), while total dietary fat as a percentage of total energy intake fell by 4.49 % (95% CI 2.31 to 6.66) with dietary advice and saturated fat intake fell by 2.36 % (95% CI 1.32 to 3.39). AUTHORS' CONCLUSIONS Dietary advice appears to be effective in bringing about modest beneficial changes in diet and cardiovascular risk factors over approximately 10 months but longer term effects are not known.
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Affiliation(s)
- E J Brunner
- University College London Medical School, Department of Epidemiology and Public Health, 1-19 Torrington Place, London, UK, WC1E 6BT.
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Okamura T, Tanaka T, Babazono A, Yoshita K, Chiba N, Takebayashi T, Nakagawa H, Yamato H, Miura K, Tamaki J, Kadowaki T, Okayama A, Ueshima H. The high-risk and population strategy for occupational health promotion (HIPOP-OHP) study: study design and cardiovascular risk factors at the baseline survey. J Hum Hypertens 2004; 18:475-85. [PMID: 14749712 DOI: 10.1038/sj.jhh.1001680] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
In order to establish the methodology of a population strategy for improving cardiovascular risk factors, we have planned the High-risk and Population Strategy for Occupational Health Promotion Study (HIPOP-OHP study). This study is a nonrandomized control trial in approximately 6500 participants in six intervention and six control companies. Our population strategy is based on three factors, nutrition, physical activity, and smoking. For each factor, a researcher's working team was organized and has been supporting the intervention. A standardized method to obtain comparable data has also been established. In the baseline survey, urinary sodium excretion in male subjects was higher, and urinary potassium excretion was lower in both genders in the intervention group compared to the control group. The prevalence of hypertension for both genders was also higher in the intervention group. Male subjects in the intervention group had higher serum total cholesterol than controls, while high-density lipoprotein cholesterol was lower in both genders in the intervention group compared to the control group. These differences were reflected by our finding that the predicted relative risk of coronary heart disease for male subjects was significantly higher in the intervention group (relative risk, RR: 1.17; 95% confidence interval, 95% CI.: 1.09, 1.25) and significantly lower in the control group (RR: 0.93; 95% CI.: 0.89, 0.98) compared to a model Japanese population. Similar results were observed in the female subjects. Taken together, these findings indicate that it is possible to compare trends of predicted relative risk for coronary heart disease between two groups.
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Affiliation(s)
- T Okamura
- Department of Health Science, Shiga University of Medical Science, Otsu, Japan. tokamura@belle,shiga-med.ac.jp
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Thompson RL, Summerbell CD, Hooper L, Higgins JP, Little PS, Talbot D, Ebrahim S. Dietary advice given by a dietitian versus other health professional or self-help resources to reduce blood cholesterol. Cochrane Database Syst Rev 2001; 2003:CD001366. [PMID: 11279715 PMCID: PMC7045749 DOI: 10.1002/14651858.cd001366] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
BACKGROUND The average level of blood cholesterol is an important determinant of the risk of coronary heart disease. Blood cholesterol can be reduced by dietary means. Although dietitians are trained to provide dietary advice, for practical reasons it is also given by other health professionals and occasionally through the use of self-help resources. OBJECTIVES To assess the effects of dietary advice given by a dietitian compared with another health professional, or the use of self-help resources, in reducing blood cholesterol in adults. SEARCH STRATEGY We searched The Cochrane Library (to Issue 2 1999), MEDLINE (1966 to January 1999), EMBASE (1980 to December 1998), Cinahl (1982 to December 1998), Human Nutrition (1991 to 1998), Science Citation Index, Social Sciences Citation Index, hand searched conference proceedings on nutrition and heart disease, and contacted experts in the field. SELECTION CRITERIA Randomised trials of dietary advice given by a dietitian compared with another health professional or self-help resources. The main outcome was difference in blood cholesterol between dietitian groups compared with other intervention groups. DATA COLLECTION AND ANALYSIS Two reviewers independently extracted data and assessed study quality. MAIN RESULTS Eleven studies with 12 comparisons were included, involving 704 people receiving advice from dietitians, 486 from other health professionals and 551 people using self-help leaflets. Four studies compared dietitian with doctor, seven with self-help resources, and one compared dietitian with nurse. Participants receiving advice from dietitians experienced a greater reduction in blood cholesterol than those receiving advice only from doctors (-0.25 mmol/L (95% CI -0.37, -0.12 mmol/L)). There was no statistically significant difference in change in blood cholesterol between dietitians and self-help resources (-0.10 mmol/L (95% CI -0.22, 0.03 mmol/L)). No statistically significant differences were detected for secondary outcome measures between any of the comparisons with the exception of dietitian versus nurse for HDLc, where the dietitian groups showed a greater reduction (-0.06 mmol/L (95% CI -0.11, -0.01)). No significant heterogeneity between the studies was detected. REVIEWER'S CONCLUSIONS Dietitians were better than doctors at lowering blood cholesterol in the short to medium term, but there was no evidence that they were better than self-help resources. The results should be interpreted with caution as the studies were not of good quality and the analysis was based on a limited number of trials. More evidence is required to assess whether change can be maintained in the longer term. There was no evidence that dietitians provided better outcomes than nurses.
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Affiliation(s)
- R L Thompson
- Institute of Human Nutrition, University of Southampton, Level B, South Academic Block, Southampton General Hospital, Southampton, Hampshire, UK, SO16 6YD.
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