Brauer, Michael, Roth, Gregory A., Aravkin, Aleksandr Y., Zheng, Peng, Abate, Kalkidan Hassen, Abate, Yohannes Habtegiorgis, Abbafati, Cristiana, Abbasgholizadeh, Rouzbeh, Abbasi, Madineh Akram, Abbasian, Mohammadreza, Abbasifard, Mitra, Abbasi-Kangevari, Mohsen, Abd Elhafeez, Samar, Abd-Elsalam, Sherief, Abdi, Parsa, Abdollahi, Mohammad, Abdoun, Meriem, Abdulah, Deldar morad, Abdullahi, Auwal, Abebe, Mesfin, Abedi, Aidin, Abedi, Armita, Abegaz, Tadesse m, Abeldaño zuñiga, Roberto ariel, Abiodun, Olumide, Abiso, Temesgen lera, Aboagye, Richard gyan, Abolhassani, Hassan, Abouzid, Mohamed, Aboye, Girma beressa, Abreu, Lucas guimarães, Abualruz, Hasan, Abubakar, Bilyaminu, Abu-Gharbieh, Eman, Abukhadijah, Hana jihad jihad, Aburuz, Salahdein, Abu-Zaid, Ahmed, Adane, Mesafint molla, Addo, Isaac yeboah, Addolorato, Giovanni, Adedoyin, Rufus adesoji, Adekanmbi, Victor, Aden, Bashir, Adetunji, Juliana bunmi, Adeyeoluwa, Temitayo esther, Adha, Rishan, Adibi, Amin, Adnani, Qorinah estiningtyas sakilah, Adzigbli, Leticia akua, Afolabi, Aanuoluwapo adeyimika, Afolabi, Rotimi felix, Afshin, Ashkan, Afyouni, Shadi, Afzal, Muhammad sohail, Afzal, Saira, Agampodi, Suneth buddhika, Agbozo, Faith, Aghamiri, Shahin, Agodi, Antonella, Agrawal, Anurag, Agyemang-Duah, Williams, Ahinkorah, Bright opoku, Ahmad, Aqeel, Ahmad, Danish, Ahmad, Firdos, Ahmad, Noah, Ahmad, Shahzaib, Ahmad, Tauseef, Ahmed, Ali, Ahmed, Anisuddin, Ahmed, Ayman, Ahmed, Luai a, Ahmed, Muktar beshir, Ahmed, Safoora, Ahmed, Syed anees, Ajami, Marjan, Akalu, Gizachew taddesse, Akara, Essona matatom, Akbarialiabad, Hossein, Akhlaghi, Shiva, Akinosoglou, Karolina, Akinyemiju, Tomi, Akkaif, Mohammed ahmed, Akkala, Sreelatha, Akombi-Inyang, Blessing, Al awaidy, Salah, Al hasan, Syed mahfuz, Alahdab, Fares, Al-Ahdal, Tareq mohammed ali, Alalalmeh, Samer o, Alalwan, Tariq a, Al-Aly, Ziyad, Alam, Khurshid, Alam, Nazmul, Alanezi, Fahad mashhour, Alanzi, Turki m, Albakri, Almaza, Albataineh, Mohammad t, Aldhaleei, Wafa a, Aldridge, Robert w, Alemayohu, Mulubirhan assefa, Alemu, Yihun mulugeta, Al-Fatly, Bassam, Al-Gheethi, Adel ali saeed, Al-Habbal, Khairat, Alhabib, Khalid f, Alhassan, Robert kaba, Ali, Abid, Ali, Amjad, Ali, Beriwan abdulqadir, Ali, Iman, Ali, Liaqat, Ali, Mohammed usman, Ali, Rafat, Ali, Syed shujait shujait, Ali, Waad, Alicandro, Gianfranco, Alif, Sheikh mohammad, Aljunid, Syed mohamed, Alla, François, Al-Marwani, Sabah, Al-Mekhlafi, Hesham m, Almustanyir, Sami, Alomari, Mahmoud a, Alonso, Jordi, Alqahtani, Jaber s, Alqutaibi, Ahmed yaseen, Al-Raddadi, Rajaa m, Alrawashdeh, Ahmad, Al-Rifai, Rami hani, Alrousan, Sahel majed, Al-Sabah, Salman khalifah, Alshahrani, Najim z, Altaany, Zaid, Altaf, Awais, Al-Tawfiq, Jaffar a, Altirkawi, Khalid a, Aluh, Deborah oyine, Alvis-Guzman, Nelson, Alvis-Zakzuk, Nelson j, Alwafi, Hassan, Al-Wardat, Mohammad sami, Al-Worafi, Yaser mohammed, Aly, Hany, Aly, Safwat, Alzoubi, Karem h, Al-Zyoud, Walid, Amaechi, Uchenna anderson, Aman mohammadi, Masous, Amani, Reza, Amiri, Sohrab, Amirzade-Iranaq, Mohammad hosein, Ammirati, Enrico, Amu, Hubert, Amugsi, Dickson a, Amusa, Ganiyu adeniyi, Ancuceanu, Robert, Anderlini, Deanna, Anderson, Jason a, Andrade, Pedro prata, Andrei, Catalina liliana, Andrei, Tudorel, Anenberg, Susan c, Angappan, Dhanalakshmi, Angus, Colin, Anil, Abhishek, Anil, Sneha, Anjum, Afifa, Anoushiravani, Amir, Antonazzo, Ippazio cosimo, Antony, Catherine m, Antriyandarti, Ernoiz, Anuoluwa, Boluwatife stephen, Anvari, Davood, Anvari, Saeid, Anwar, Saleha, Anwar, Sumadi lukman, Anwer, Razique, Anyabolo, Ekenedilichukwu emmanuel, Anyasodor, Anayochukwu edward, Apostol, Geminn louis carace, Arabloo, Jalal, Arabzadeh bahri, Razman, Arafat, Mosab, Areda, Demelash, Aregawi, Brhane berhe, Aremu, Abdulfatai, Armocida, Benedetta, Arndt, Michael benjamin, Ärnlöv, Johan, Arooj, Mahwish, Artamonov, Anton a, Artanti, Kurnia dwi, Aruleba, Idowu thomas, Arumugam, Ashokan, Asbeutah, Akram m, Asgary, Saeed, Asgedom, Akeza awealom, Ashbaugh, Charlie, Ashemo, Mubarek yesse, Ashraf, Tahira, Askarinejad, Amir, Assmus, Michael, Bendak, Salaheddine, Boufous, Soufiane, Chan, Raymond N.C., Franklin, Richard Charles, Gautam, Rupesh K., Hoque, Mohammad Enamul, Islam, Md Rabiul, Johnson, Catherine O., Knibbs, Luke D., Kumar, Vijay, Le, Huu-Hoai, Le, Nhi huu hanh, Leung, Janni, Mcphail, Steven M., Morawska, Lidia, Tonelli, Marcello, Ward, Paul, Murray, Christopher J.L., & other, and(2024)Global burden and strength of evidence for 88 risk factors in 204 countries and 811 subnational locations, 1990-2021: a systematic analysis for the Global Burden of Disease Study 2021.The Lancet, 403(10440), pp. 2162-2203.
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Description
Background
Understanding the health consequences associated with exposure to risk factors is necessary to inform public health policy and practice. To systematically quantify the contributions of risk factor exposures to specific health outcomes, the Global Burden of Diseases, Injuries, and Risk Factors Study (GBD) 2021 aims to provide comprehensive estimates of exposure levels, relative health risks, and attributable burden of disease for 88 risk factors in 204 countries and territories and 811 subnational locations, from 1990 to 2021.
Methods
The GBD 2021 risk factor analysis used data from 54 561 total distinct sources to produce epidemiological estimates for 88 risk factors and their associated health outcomes for a total of 631 risk–outcome pairs. Pairs were included on the basis of data-driven determination of a risk–outcome association. Age-sex-location-year-specific estimates were generated at global, regional, and national levels. Our approach followed the comparative risk assessment framework predicated on a causal web of hierarchically organised, potentially combinative, modifiable risks. Relative risks (RRs) of a given outcome occurring as a function of risk factor exposure were estimated separately for each risk–outcome pair, and summary exposure values (SEVs), representing risk-weighted exposure prevalence, and theoretical minimum risk exposure levels (TMRELs) were estimated for each risk factor. These estimates were used to calculate the population attributable fraction (PAF; ie, the proportional change in health risk that would occur if exposure to a risk factor were reduced to the TMREL). The product of PAFs and disease burden associated with a given outcome, measured in disability-adjusted life-years (DALYs), yielded measures of attributable burden (ie, the proportion of total disease burden attributable to a particular risk factor or combination of risk factors). Adjustments for mediation were applied to account for relationships involving risk factors that act indirectly on outcomes via intermediate risks. Attributable burden estimates were stratified by Socio-demographic Index (SDI) quintile and presented as counts, age-standardised rates, and rankings. To complement estimates of RR and attributable burden, newly developed burden of proof risk function (BPRF) methods were applied to yield supplementary, conservative interpretations of risk–outcome associations based on the consistency of underlying evidence, accounting for unexplained heterogeneity between input data from different studies. Estimates reported represent the mean value across 500 draws from the estimate's distribution, with 95% uncertainty intervals (UIs) calculated as the 2·5th and 97·5th percentile values across the draws.
Findings
Among the specific risk factors analysed for this study, particulate matter air pollution was the leading contributor to the global disease burden in 2021, contributing 8·0% (95% UI 6·7–9·4) of total DALYs, followed by high systolic blood pressure (SBP; 7·8% [6·4–9·2]), smoking (5·7% [4·7–6·8]), low birthweight and short gestation (5·6% [4·8–6·3]), and high fasting plasma glucose (FPG; 5·4% [4·8–6·0]). For younger demographics (ie, those aged 0–4 years and 5–14 years), risks such as low birthweight and short gestation and unsafe water, sanitation, and handwashing (WaSH) were among the leading risk factors, while for older age groups, metabolic risks such as high SBP, high body-mass index (BMI), high FPG, and high LDL cholesterol had a greater impact. From 2000 to 2021, there was an observable shift in global health challenges, marked by a decline in the number of all-age DALYs broadly attributable to behavioural risks (decrease of 20·7% [13·9–27·7]) and environmental and occupational risks (decrease of 22·0% [15·5–28·8]), coupled with a 49·4% (42·3–56·9) increase in DALYs attributable to metabolic risks, all reflecting ageing populations and changing lifestyles on a global scale. Age-standardised global DALY rates attributable to high BMI and high FPG rose considerably (15·7% [9·9–21·7] for high BMI and 7·9% [3·3–12·9] for high FPG) over this period, with exposure to these risks increasing annually at rates of 1·8% (1·6–1·9) for high BMI and 1·3% (1·1–1·5) for high FPG. By contrast, the global risk-attributable burden and exposure to many other risk factors declined, notably for risks such as child growth failure and unsafe water source, with age-standardised attributable DALYs decreasing by 71·5% (64·4–78·8) for child growth failure and 66·3% (60·2–72·0) for unsafe water source. We separated risk factors into three groups according to trajectory over time: those with a decreasing attributable burden, due largely to declining risk exposure (eg, diet high in trans-fat and household air pollution) but also to proportionally smaller child and youth populations (eg, child and maternal malnutrition); those for which the burden increased moderately in spite of declining risk exposure, due largely to population ageing (eg, smoking); and those for which the burden increased considerably due to both increasing risk exposure and population ageing (eg, ambient particulate matter air pollution, high BMI, high FPG, and high SBP).
Interpretation
Substantial progress has been made in reducing the global disease burden attributable to a range of risk factors, particularly those related to maternal and child health, WaSH, and household air pollution. Maintaining efforts to minimise the impact of these risk factors, especially in low SDI locations, is necessary to sustain progress. Successes in moderating the smoking-related burden by reducing risk exposure highlight the need to advance policies that reduce exposure to other leading risk factors such as ambient particulate matter air pollution and high SBP. Troubling increases in high FPG, high BMI, and other risk factors related to obesity and metabolic syndrome indicate an urgent need to identify and implement interventions.
Impact and interest:
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ID Code: | 252189 | ||||
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Item Type: | Contribution to Journal (Journal Article) | ||||
Refereed: | Yes | ||||
ORCID iD: |
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Measurements or Duration: | 42 pages | ||||
DOI: | 10.1016/S0140-6736(24)00933-4 | ||||
ISSN: | 0140-6736 | ||||
Pure ID: | 178441642 | ||||
Divisions: | Current > QUT Faculties and Divisions > Faculty of Science Current > QUT Faculties and Divisions > Faculty of Health | ||||
Funding Information: | Research reported in this publication was supported by the Bill & Melinda Gates Foundation (OPP1152504); Queensland Department of Health, Australia; UK Department of Health and Social Care; the Norwegian Institute of Public Health; Bloomberg Philanthropies; the New Zealand Ministry of Health. | ||||
Copyright Owner: | 2024 The Authors | ||||
Copyright Statement: | This work is covered by copyright. Unless the document is being made available under a Creative Commons Licence, you must assume that re-use is limited to personal use and that permission from the copyright owner must be obtained for all other uses. If the document is available under a Creative Commons License (or other specified license) then refer to the Licence for details of permitted re-use. It is a condition of access that users recognise and abide by the legal requirements associated with these rights. If you believe that this work infringes copyright please provide details by email to qut.copyright@qut.edu.au | ||||
Deposited On: | 27 Sep 2024 00:47 | ||||
Last Modified: | 27 Sep 2024 13:34 |
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