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Jahangiry L, Aune D, Farhangi MA. Screen time and the risk of metabolic syndrome among children and adolescents: A systematic review and dose-response meta-analysis. Nutr Metab Cardiovasc Dis 2022; 32:2483-2492. [PMID: 36155149 DOI: 10.1016/j.numecd.2022.08.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/24/2022] [Revised: 07/27/2022] [Accepted: 08/03/2022] [Indexed: 10/31/2022]
Abstract
AIMS The metabolic syndrome (MetS) and its consequences are one of the main public health challenges worldwide. We conducted a systematic review and dose-response meta-analysis of studies that examined the association between screen time and the MetS among children and adolescents. DATA SYNTHESIS A systematic search was conducted using electronic databases, including PubMed, Scopus, ProQuest, and Cochrane Library, for studies published from 1963 up to 2 May 2022. In this systematic review and meta-analysis, observational studies with cross-sectional, case-control, and cohort design evaluating the association between screen time and MetS were included. Random effects models and linear and nonlinear dose-response meta-analyses were used to pool study results. RESULTS Seven studies were included in the meta-analysis. The summary OR of MetS among children and adolescents for the highest vs. lowest time of screen time was 1.64 (95% CI: 1.32-2.03, with little evidence of heterogeneity, I2 = 9.3%, P-heterogeneity = 0.35, n = 7 studies) and 1.64 (95% CI: 1.27-2.12, I2 = 27.7%, n = 6) for cross-sectional studies. Results persisted across several additional subgroup analyses. There was a linear positive association between screen time and the risk of MetS (P dose-response <0.0001; P nonlinearity = 0.64) with an OR of 1.29 (95% CI: 1.12-1.46) per 2 h/day increment in screen time. CONCLUSION The current dose-response meta-analysis suggested that increased screen time is associated with an increased risk of MetS among children and adolescents. Public health strategies may target unhealthy screen-based related behaviors to halt the development of MetS among children and adolescents.
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Affiliation(s)
- L Jahangiry
- Tabriz Health Services Management Research Center, Health Education and Health Promotion Department, Tabriz University of Medical Sciences, Tabriz, Iran; Medical Education Research Center, Health Management and Safety Promotion Research Institute, Tabriz University of Medical Sciences, Tabriz 5166/15731, Iran.
| | - D Aune
- Department of Epidemiology and Biostatistics, School of Public Health, Imperial College London, London, United Kingdom; Department of Nutrition, Bjørknes University College, Oslo, Norway; Department of Endocrinology, Morbid Obesity and Preventive Medicine, Oslo University Hospital, Oslo, Norway.
| | - M A Farhangi
- Department of Community Nutrition, Faculty of Nutrition, Tabriz University of Medical Sciences, Tabriz, Iran.
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de Paiva MHP, Miranda VA, de Oliveira ARS, Cruz KJC, de Araújo RMS, de Oliveira KA. Prevalence of metabolic syndrome and its components in Brazilian adolescents: a systematic review and meta-analysis. REVISTA PAULISTA DE PEDIATRIA : ORGAO OFICIAL DA SOCIEDADE DE PEDIATRIA DE SAO PAULO 2022; 41:e2021145. [PMID: 35830158 PMCID: PMC9273121 DOI: 10.1590/1984-0462/2023/41/2021145] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/17/2021] [Accepted: 11/14/2021] [Indexed: 01/19/2023]
Abstract
OBJECTIVE To determine the prevalence of metabolic syndrome (MS) and its components among Brazilian adolescents. DATA SOURCE Databases, such as LILACS, MEDLINE, and SciELO, were searched for original cross-sectional studies published between 2010 and 2021. The inclusion criteria were determined based on the mnemonic CoCoPop - Condition, Context, and Population: studies determining the prevalence of MS and its components (condition) in the general population of Brazilian adolescents, female and male (population), enrolled in public or private schools in rural or urban areas (context). Reviews, editorials, and articles that did not directly relate to the prevalence of MS or that included non-adolescent age groups or groups with specific health conditions (obesity/overweight and others) were excluded. DATA SYNTHESIS A total of 15 studies, including 43,227 adolescents, were identified. MS prevalence (95% confidence interval [95%CI]) was 2.9% (2.65-3.18) and 2.4% (1.90-2.90) (p<0.001) in males and females, respectively, by using the International Diabetes Federation (IDF) criteria. There was a significant difference in MS prevalence among Brazilian regions (Q=24.7; p<0.001). The lowest MS prevalence (95%CI) was determined for North Region of Brazil, 1.8% (1.52-2.13), and the highest for Northeast Region of Brazil, 2.9% (2.62-3.23). Regarding MS components, a higher prevalence (95%CI) was found for low high-density lipoprotein (HDL), 22.1% (12.49-36.17), followed by abdominal obesity, 11.0% (8.05-14.94), and arterial hypertension, 10.3% (7.84-13.48). CONCLUSIONS This study allowed the determination of the prevalence of MS and the MS components in Brazilian adolescents, highlighting relevant aspects to be addressed on public health management.
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Silveira JFDC, Welser L, de Borba Schneiders L, da Silva PT, Paiva DN, Hobkirk JP, Carroll S, Reuter CP. Associations of higher TV viewing and low levels of cardiorespiratory fitness with cardiometabolic risk in children and adolescents. SPORT SCIENCES FOR HEALTH 2021. [DOI: 10.1007/s11332-021-00843-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Inoue T, Yoshida K, Sasaki E, Aizawa K, Kamioka H. Effects of lycopene intake on HDL-cholesterol and triglyceride levels: A systematic review with meta-analysis. J Food Sci 2021; 86:3285-3302. [PMID: 34268742 DOI: 10.1111/1750-3841.15833] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2020] [Revised: 03/28/2021] [Accepted: 06/17/2021] [Indexed: 01/08/2023]
Abstract
Lycopene is a lipophilic unsaturated carotenoid and has a very strong singlet oxygen-quenching ability. Increased serum or plasma lycopene levels have been reported to be associated with a lower risk of metabolic syndrome. We aimed to investigate the effects of lycopene intake on blood HDL-cholesterol (HCL-c) and triglyceride (TG) levels, which are metabolic syndrome biomarkers, by systematic review and meta-analyses of human interventional trials. We searched 15 databases and included studies that assessed the effects of oral lycopene intake on blood HDL-c and TG levels of participants ≥18 years of age. Three reviewers independently selected applicable studies, then assessed study qualities. Data were pooled as standardized mean difference (SMD) and analyzed by random-effects model. Heterogeneity was assessed by I2 statistics. Meta-analysis including 12 trial arms (n = 781) revealed a significantly increased HDL-c level in the lycopene group compared with that in the control group (SMD = 0.33 [95% CI: 0.12, 0.54], p = 0.002) and moderate heterogeneity (I2 = 45%). Most subgroup meta-analyses (restricted to study design, test food type, intake period, and participants' characteristics) showed similar results for HDL-c level. On the other hand, meta-analysis including 11 studies (n = 854) revealed no significant difference in TG level between the lycopene and control groups. Most studies which met eligibility criteria had moderate risk of bias. Funnel plots for HDL-c and TG suggested an absence of publication bias. In conclusion, this systematic review and meta-analyses suggested that lycopene intake significantly improved blood HDL-c levels but not TG levels.
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Affiliation(s)
- Takuro Inoue
- Nature & Wellness Research Department, Innovation Division, KAGOME CO., LTD., Nasushiobara, Tochigi, Japan.,Department of Ecological Symbiotic Science, Tokyo University of Agriculture, Setagaya-ku, Tokyo, Japan
| | - Kazutaka Yoshida
- Nature & Wellness Research Department, Innovation Division, KAGOME CO., LTD., Nasushiobara, Tochigi, Japan
| | - Erika Sasaki
- Nature & Wellness Research Department, Innovation Division, KAGOME CO., LTD., Nasushiobara, Tochigi, Japan
| | - Koichi Aizawa
- Nature & Wellness Research Department, Innovation Division, KAGOME CO., LTD., Nasushiobara, Tochigi, Japan
| | - Hiroharu Kamioka
- Department of Ecological Symbiotic Science, Tokyo University of Agriculture, Setagaya-ku, Tokyo, Japan
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Sbaraini M, Cureau FV, Sparrenberger K, Teló GH, Kuschnir MCC, Oliveira JS, Leal VS, Bloch KV, Schaan BD. Severity of obesity is associated with worse cardiometabolic risk profile in adolescents: Findings from a Brazilian national study (ERICA). Nutrition 2020; 75-76:110758. [PMID: 32302931 DOI: 10.1016/j.nut.2020.110758] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2019] [Revised: 01/11/2020] [Accepted: 01/19/2020] [Indexed: 01/17/2023]
Abstract
OBJECTIVE The prevalence of obesity and severe obesity among adolescents has increased dramatically in developing countries. However, the distribution of cardiometabolic risk factors through the severity of obesity continuum is relatively unknown among youth. The aim of this study was to evaluate the association of weight categories with cardiometabolic risk factors among Brazilian adolescents. METHODS ERICA (The Study of Cardiovascular Risk in Adolescents) was a multicenter, school-based, cross-sectional study composed of Brazilian adolescents (12-17 y of age). Severity of obesity was classified according to the International Obesity Task Force reference values for body mass index (BMI) and several cardiometabolic risk factors were measured after clinical and biochemical exams and categorized using standard definitions of abnormal values. RESULTS Among the 37 892 adolescents enrolled, 8708 had excess weight, being classified with overweight (17.2%), obesity (5.6%), and severe obesity (1.3%). Increasing severity of obesity was associated with a worse cardiometabolic profile in the overall sample. Multivariable models that controlled for age, sex, skin color, socioeconomic status, physical activity, and total energy intake, showed that individuals in higher categories of severity of obesity tended to have higher prevalence ratios of most cardiometabolic risk factors compared with the other weight groups, except for high fasting blood glucose among boys. CONCLUSIONS Progressive degrees of excess weight are positively associated with cardiometabolic risk factors in youth from a middle-income country, indicating the importance in classifying the severity of weight excess among adolescents and considering this to plan prevention programs against early development of obesity-related diseases.
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Affiliation(s)
- Mariana Sbaraini
- Universidade Federal do Rio Grande do Sul (UFRGS), Programa de Pós-Graduação em Ciências da Saúde: Cardiologia e Ciências Cardiovasculares, Porto Alegre, RS, Brazil.
| | - Felipe Vogt Cureau
- Universidade Federal do Rio Grande do Sul (UFRGS), Programa de Pós-Graduação em Ciências da Saúde: Cardiologia e Ciências Cardiovasculares, Porto Alegre, RS, Brazil
| | - Karen Sparrenberger
- Universidade Federal do Rio Grande do Sul (UFRGS), Programa de Pós-Graduação em Ciências Médicas: Endocrinologia, Porto Alegre, RS, Brazil
| | - Gabriela Heiden Teló
- Universidade Federal do Rio Grande do Sul (UFRGS), Programa de Pós-Graduação em Ciências Médicas: Endocrinologia, Porto Alegre, RS, Brazil
| | - Maria Cristina Caetano Kuschnir
- Universidade do Estado do Rio de Janeiro (UERJ), Programa de Pós-Graduação em Ciências Médicas, Faculdade de Ciências Médicas, Rio de Janeiro, RJ, Brazil
| | - Juliana Souza Oliveira
- Universidade Federal de Pernambuco (UFPE), Centro Acadêmico de Vitória, Vitória de Santo Antão, PE, Brazil
| | - Vanessa Sá Leal
- Universidade Federal de Pernambuco (UFPE), Centro Acadêmico de Vitória, Vitória de Santo Antão, PE, Brazil
| | - Katia Vergetti Bloch
- Universidade Federal do Rio de Janeiro (UFRJ), Instituto de Estudos em Saúde Coletiva (IESC), Rio de Janeiro, RJ, Brazil
| | - Beatriz D Schaan
- Universidade Federal do Rio Grande do Sul (UFRGS), Programa de Pós-Graduação em Ciências da Saúde: Cardiologia e Ciências Cardiovasculares, Porto Alegre, RS, Brazil; Universidade Federal do Rio Grande do Sul (UFRGS), Programa de Pós-Graduação em Ciências Médicas: Endocrinologia, Porto Alegre, RS, Brazil; Hospital de Clínicas de Porto Alegre, Porto Alegre, RS, Brazil
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Bitew ZW, Alemu A, Ayele EG, Tenaw Z, Alebel A, Worku T. Metabolic syndrome among children and adolescents in low and middle income countries: a systematic review and meta-analysis. Diabetol Metab Syndr 2020; 12:93. [PMID: 33117455 PMCID: PMC7590497 DOI: 10.1186/s13098-020-00601-8] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/27/2020] [Accepted: 10/19/2020] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND Metabolic syndrome (MetS) is a clustering of cardiovascular risk factors, which is rising in the low and middle income countries (LMICs). There are various studies with inconsistent findings that are inconclusive for policy makers and program planners. Thus, this systematic review and meta-analysis aimed at estimating the pooled prevalence of MetS and its components in LMICs. METHODS Electronic searches were conducted in international databases including PubMed, Web of Science, EMBASE (Elsevier), Scopus, CINAHL (EBSCOhost), Science direct (Elsevier), Food Science and Technology Abstracts (FSTA), Global Health and Medline, and other sources (World Cat, Google Scholar, and Google). The pooled estimates were computed in the random effect model. The pooled prevalence was computed using the three diagnostic methods (IDF, ATP III and de Ferranti). Publication bias was verified using funnel plot and Egger's regression test. Subgroup and sensitivity analysis were performed to identify the possible sources of heterogeneity among the included studies. RESULT In this study, 142,142 children and adolescents from 76 eligible articles were included to compute the pooled prevalence of MetS and its components in LMCIs. MeTs among overweight and obese population was computed from 20 articles with the pooled prevalence of 24.09%, 36.5%, and 56.32% in IDF, ATP III and de Ferranti criteria, respectively. Similarly, a total of 56 articles were eligible to compute the pooled prevalence of MetS in the general population of children and adolescents. Hence, Mets was found in 3.98% (IDF), 6.71% (ATP III) and 8.91% (de Ferranti) of study subjects. Regarding the components of MetS, abdominal obesity was the major component in overweight and obese population and low HDL-C was the most common component in the general population. This study also revealed that males were highly affected by MetS than females. CONCLUSION This study illustrates that MetS among children and adolescents is an emerging public health challenge in LMICs, where the prevalence of obesity is on the move. Preventive strategies such as community and school based intervention need to be designed. Promoting physical activities and healthy eating behaviors could avert this problem.
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Affiliation(s)
| | | | | | - Zelalem Tenaw
- College of Medicine and Health Sciences, Hawassa University, Hawassa, Ethiopia
| | - Anmut Alebel
- College of Health Science, Debremarkose University, Debre Markos, Ethiopia
- Australian Centre for Public and Population Health Research, School of Public Health, Faculty of Health, University of Technology Sydney, Ultimo, NSW Australia
| | - Teshager Worku
- College of Health and Medical Sciences, School of Nursing and Midwifery, Haramaya University, Harar, Ethiopia
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