Jun Li1,2, Simin Hua3, Guo-Chong Chen3, Garrett Strizich3, Mark H Kuniholm4, Zhilei Shan1,5, Gregory A Talavera6, Sheila F Castañeda6, Marc D Gellman7, Jianwen Cai8, Scott J Cotler9, Xuehong Zhang10, Frank B Hu1,2,10, Robert Kaplan3, Carmen R Isasi3, Qibin Qi1,3. 1. Department of Nutrition, Harvard T.H. Chan School of Public Health, Boston, MA, USA. 2. Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA, USA. 3. Department of Epidemiology and Population Health, Albert Einstein College of Medicine, Bronx, NY, USA. 4. Department of Epidemiology and Biostatistics, University at Albany, State University of New York, Rensselaer, NY, USA. 5. Department of Nutrition, School of Public Health, Tongji Medical School, Huazhong University of Science and Technology, Wuhan, China. 6. South Bay Latino Research Center, Graduate School of Public Health, San Diego State University, San Diego, CA, USA. 7. Department of Psychology, University of Miami, Miami, FL, USA. 8. Department of Biostatistics, University of North Carolina-Chapel Hill, Chapel Hill, NC, USA. 9. Department of Medicine, Section of Hepatology, Loyola University Medical Center, Maywood, IL, USA. 10. Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, USA.
Abstract
BACKGROUND & AIMS: Sedentariness and physical inactiveness are associated with deleterious health outcomes, but their associations with liver enzyme elevations remain uncertain. METHODS: In 10 385 US Hispanics/Latinos from the Hispanic Community Health Study/Study of Latinos, we examined associations of sedentary time and moderate-to-vigorous physical activity (MVPA) measured by accelerometers with liver enzyme elevations. Elevated alanine aminotransferase (ALT), aspartate aminotransferase and γ-glutamyltransferase (GGT) were defined as the highest gender-specific deciles. Prevalence ratios (PRs) and 95% confidence intervals (CIs) were calculated using weighted Poisson regressions. RESULTS: After adjusting for demographical/socioeconomic factors and MVPA, increasing quartiles of sedentary time were associated with a higher prevalence of elevated ALT (PRs [95% CI] = 1.0, 1.17 [0.92-1.47], 1.21 [0.96, 1.53] and 1.51 [1.13-2.02]; P-trend = .007) and elevated GGT (PRs [95% CI] = 1.0, 1.06 [0.82-1.36], 1.35 [1.06-1.73] and 1.66 [1.27-2.16]; P-trend = .0001). These associations were attenuated but remained significant after further adjustment for cardiometabolic traits including body-mass index, waist-hip-ratio, lipids and homeostatic model assessment of insulin resistance. In contrast, increasing quartiles of MVPA were associated with a lower prevalence of elevated ALT (PRs [95% CI] =1.0, 0.97 [0.77-1.23], 0.84 [0.66-1.06] and 0.72 [0.54-0.96]; P-trend = .01) after adjusting for demographical/socioeconomic factors and sedentary time, but this association became non-significant after further adjustment for cardiometabolic traits. Notably, the association of sedentary time with GGT elevation was significant both in individuals meeting the US Physical Activity Guidelines for Americans (MVPA ≥150 minutes/week) and in those who did not (both P-trend ≤ .003). CONCLUSIONS: Our findings suggest that objectively measured sedentary time is independently associated with elevated ALT and GGT in US Hispanics/Latinos.
BACKGROUND & AIMS: Sedentariness and physical inactiveness are associated with deleterious health outcomes, but their associations with liver enzyme elevations remain uncertain. METHODS: In 10 385 US Hispanics/Latinos from the Hispanic Community Health Study/Study of Latinos, we examined associations of sedentary time and moderate-to-vigorous physical activity (MVPA) measured by accelerometers with liver enzyme elevations. Elevated alanine aminotransferase (ALT), aspartate aminotransferase and γ-glutamyltransferase (GGT) were defined as the highest gender-specific deciles. Prevalence ratios (PRs) and 95% confidence intervals (CIs) were calculated using weighted Poisson regressions. RESULTS: After adjusting for demographical/socioeconomic factors and MVPA, increasing quartiles of sedentary time were associated with a higher prevalence of elevated ALT (PRs [95% CI] = 1.0, 1.17 [0.92-1.47], 1.21 [0.96, 1.53] and 1.51 [1.13-2.02]; P-trend = .007) and elevated GGT (PRs [95% CI] = 1.0, 1.06 [0.82-1.36], 1.35 [1.06-1.73] and 1.66 [1.27-2.16]; P-trend = .0001). These associations were attenuated but remained significant after further adjustment for cardiometabolic traits including body-mass index, waist-hip-ratio, lipids and homeostatic model assessment of insulin resistance. In contrast, increasing quartiles of MVPA were associated with a lower prevalence of elevated ALT (PRs [95% CI] =1.0, 0.97 [0.77-1.23], 0.84 [0.66-1.06] and 0.72 [0.54-0.96]; P-trend = .01) after adjusting for demographical/socioeconomic factors and sedentary time, but this association became non-significant after further adjustment for cardiometabolic traits. Notably, the association of sedentary time with GGT elevation was significant both in individuals meeting the US Physical Activity Guidelines for Americans (MVPA ≥150 minutes/week) and in those who did not (both P-trend ≤ .003). CONCLUSIONS: Our findings suggest that objectively measured sedentary time is independently associated with elevated ALT and GGT in US Hispanics/Latinos.
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