dc.contributor.advisor | Kudryavtsev, Alexander Valerievich | |
dc.contributor.author | Mitkin, Nikita Andreevich | |
dc.date.accessioned | 2025-07-23T10:43:59Z | |
dc.date.available | 2025-07-23T10:43:59Z | |
dc.date.issued | 2025-08-25 | |
dc.description.abstract | Alcohol consumption significantly affects health, but its relation to body composition, physical function, and mortality remain insufficiently understood. This thesis explores these associations in Russia, a country with high alcohol consumption and related health burdens.
Using data from the Know Your Heart study (Arkhangelsk, Russia, 2015–17), we analyzed records of 4,372 participants aged 35–69 from the general population and 272 in-patients treated for alcohol-related disorders (narcology patients). For the general population, alcohol consumption was categorized into non-drinking, non-problem drinking, hazardous drinking, and harmful drinking.
Compared to non-problem drinkers, hazardous drinkers had higher waist circumference, waist-to-hip ratio, and body fat percentage. Harmful drinkers and especially narcology patients had lower body mass index and other adiposity-related body composition parameters. Harmful drinking was associated with reduced physical performance, particularly in grip strength and chair rise tests. Narcology patients had a substantially higher 6-year mortality compared to non-problem drinkers, with hazard ratios of 3.2 for death from any cause, 3.3 for cardiovascular causes, 9.4 for external causes, and 7.8 for other causes. Compared to the general population, conventional risk factors were less predictive of mortality in narcology patients. Higher education increased cardiovascular mortality risk in this group, while the effects of male sex, smoking, and cardiovascular biomarkers were lower. | en_US |
dc.description.abstract | Bruk av alkohol påvirker helsen i betydelig grad, men effekter på kroppssammensetning, fysisk funksjon og dødelighet er fortsatt utilstrekkelig forstått. Denne avhandlingen utforsker disse forholdene i Russland, et land med høyt alkoholforbruk og relaterte helsebelastninger. Ved å bruke data fra Know Your Heart-studien (Arkhangelsk, Russland, 2015–17), analyserte vi registreringer av 4372 deltakere i alderen 35–69 fra den generelle befolkningen og 272 in-patients behandlet for alkoholrelaterte lidelser (narkologiske pasienter). I den generelle befolkningen ble alkoholforbruk kategorisert i ikke-drikking, ikke-problemdrikking, hasard-drikking og skadelig drikking. Sammenlignet med ikke-problemdrikkere hadde hasard-drikkere høyere midjeomkrets, midje-til-hofte-forhold og kroppsfettprosent. Skadelig drikkende og spesielt narkologiske pasienter hadde lavere kroppsmasseindeks og andre fettrelaterte kroppssammensetningsparametere. Skadelig drikking var assosiert med redusert fysisk ytelse, spesielt i grepsstyrke og stolhevingstester. Narkologiske pasienter hadde en betydelig høyere 6-års dødelighet sammenlignet med ikke-problemdrikkere, med hasardrate 3,2 for død uansett årsak, 3,3 for kardiovaskulære årsaker, 9,4 for eksterne årsaker og 7,8 for andre årsaker. Sammenlignet med den generelle befolkningen, var konvensjonelle risikofaktorer mindre prediktive for dødelighet hos narkologiske pasienter. Høyere utdanning økte risikoen for kardiovaskulær dødelighet i denne gruppen, mens effekten av mannlig kjønn, røyking og kardiovaskulære biomarkører var lavere. | en_US |
dc.description.doctoraltype | ph.d. | en_US |
dc.description.popularabstract | This work investigates how alcohol consumption is related to body composition, physical function, and mortality in adults of Russia, a country with high alcohol harm. Using data from the Know Your Heart study, we investigated these associations across different drinking levels. We found that people with high alcohol consumption have more body fat than moderate drinkers. Drinkers with signs of alcohol dependence had leaner bodies and reduced physical function, especially grip strength. People treated for alcohol-related diagnoses, as the most severe drinkers, were the leanest. Those with alcohol-related diagnoses also had three times the risk of death compared to moderate drinkers. In addition, biomarkers of cardiovascular disease were less predictive of mortality in this group. | en_US |
dc.description.sponsorship | The Know Your Heart (KYH) study was a component of International Project on Cardiovascular Disease in Russia (IPCDR) and funded by Wellcome Trust Strategic Award (100217), UiT The Arctic University of Norway (UiT), Norwegian Institute of Public Health, and Norwegian Ministry of Health and Social Affairs. The funding bodies had no role in the design of the study, data collection, analysis, interpretation of data, or in writing the manuscript. | en_US |
dc.identifier.isbn | 978-82-350-0033-0 | |
dc.identifier.uri | https://hdl.handle.net/10037/37850 | |
dc.language.iso | eng | en_US |
dc.publisher | UiT The Arctic University of Norway | en_US |
dc.publisher | UiT Norges arktiske universitet | en_US |
dc.relation.haspart | <p>Paper I: Mitkin, N.A., Unguryanu, T.N., Malyutina, S. & Kudryavtsev, A.V. (2023). Association between Alcohol Consumption and Body Composition in Russian Adults and Patients Treated for Alcohol-Related Disorders: The Know Your Heart Cross-Sectional Study. <i>International Journal of Environmental Research and Public Health, 20</i>(4), 2905. Also available in Munin at <a href=https://hdl.handle.net/10037/30523>https://hdl.handle.net/10037/30523</a>.
<p>Paper II: Mitkin, N.A., Kirilkin, G.E., Unguryanu, T.N., Malyutina, S., Cook, S. & Kudryavtsev, A.V. (2024). The relationship between physical performance and alcohol consumption levels in Russian adults. <i>Scientific Reports, 14</i>, 1417. Also available in Munin at <a href=https://hdl.handle.net/10037/34502>https://hdl.handle.net/10037/34502</a>.
<p>Paper III: Mitkin, N.A., Brenn, T., Unguryanu, T.N., Malyutina, S., Cook, S. & Kudryavtsev, A.V. (2024). Alcohol and cause-specific mortality in Russia: the Know Your Heart Study 2015-23. <i>BMC Public Health, 24</i>, 3128. Also available in Munin at <a href=https://hdl.handle.net/10037/35979>https://hdl.handle.net/10037/35979</a>. | en_US |
dc.relation.isbasedon | The datasets generated during and analyzed during the current study are available in the International Project on Cardiovascular Disease in Russia (IPCDR) repository, available at <a href=https://metadata.knowyourheart.science/>https://metadata.knowyourheart.science/</a>. | en_US |
dc.rights.accessRights | openAccess | en_US |
dc.rights.holder | Copyright 2025 The Author(s) | |
dc.rights.uri | https://creativecommons.org/licenses/by/4.0 | en_US |
dc.rights | Attribution 4.0 International (CC BY 4.0) | en_US |
dc.subject | alcohol | en_US |
dc.subject | body composition | en_US |
dc.subject | physical function | en_US |
dc.subject | mortality | en_US |
dc.subject | risk factor | en_US |
dc.title | Associations of Alcohol with Body Composition, Physical Function and Mortality in Russia: The Know Your Heart Study | en_US |
dc.type | Doctoral thesis | en_US |
dc.type | Doktorgradsavhandling | en_US |