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IntroductionNon-alcoholic fatty liver disease (NAFLD) poses a significant global health challenge, necessitating comprehensive exploration of its etiology. This study investigates the intricate relationship between body composition and NAFLD prevalence, focusing on the balance between muscle mass and fat content.MethodsEmploying a retrospective cross-sectional design, 2,493 participants undergoing routine health examinations were analyzed. Body compositions, including muscle mass and fat, were measured using bioelectrical-impedance analysis. The prevalence of NAFLD was assessed based on clinical guidelines.ResultsThis study included 2,493 patients, including 1,601 (64.2%) men and 892(35.8%) women. The average age of these participants was 46.0 ± 13.1 years, with a mean body mass index of 25.0 ± 3.6 kg/m2. The levels of fat free mass (FFM) to fat mass (FM) ratio (FFM/FM) and appendicular skeletal muscle mass index (ASMI) demonstrated a negative association with the prevalence of NAFLD (OR (95% CI): 0.553 (0.427–0.704) and 0.850 (0.730–0.964), p

BackgroundThe morbidity of thyroid cancer has been increasing in the last decades all over the world. In addition to the more sensitive thyroid nodule screening technology, several social and environmental factors might represent credible candidates for this increase. They include psychological stress, lifestyle-associated risk factors, nutritional deficiencies, and environmental pollutants. Foremost, psychological stress had gained high interest as a possible promoter and a modifiable risk factor for thyroid nodules in recent years. The present study was to investigate the clinical characteristics and psychological status of the population during the peak of coronavirus disease 2019 (COVID-19) and assessed the association of psychosocial determinants and the ultrasonic characteristics of thyroid nodules.MethodsIn this cross-sectional study, 490 adult subjects who had received at least two doses of COVID-19 vaccine and were not infected with COVID-19, and did not know whether they had thyroid nodules, received thyroid color ultrasound examination and psychological questionnaire survey. Depression, anxiety, and stress were assessed using Depression Anxiety Stress Scales-21 (DASS-21). Sleep quality was rated using the Pittsburgh sleep quality index (PQSI). The characteristics of 243 subjects with thyroid nodules were described and recorded in detail by thyroid color ultrasound, and the correlations between anxiety, depression, sleep quality, clinical indicators, and thyroid nodule ultrasound characteristics were analyzed. Associations between psychological status (mutually adjusted predictors) and ultrasonic characteristics of thyroid nodules (outcome) were modeled using binary logistic regression controlling for sex, age, BMI, TSH, FT3, and FT4.ResultsDepression was positively correlated with thyroid hypoechoic nodule (OR = 3.720, 95%CI 1.615–8.570), microcalcification of thyroid nodule (OR = 3.638, 95%CI 1.476–8.966), the aspect ratio of thyroid nodule>1 (OR = 3.860, 95%CI 1.052–14.161), the unclear boundary of thyroid nodule (OR = 4.254, 95%CI 1.359–13.312), and the irregular edge of thyroid nodule (OR = 4.134, 95%CI 1.810–9.439). Anxiety was positively correlated with microcalcification of thyroid nodules (OR = 4.319, 95%CI 1.487–11.409). Stress was positively correlated with thyroid hypoechoic nodules (OR = 4.319, 95%CI 1.487–11.409), microcalcification of thyroid nodules (OR = 2.724, 95%CI 1.038–7.151), and the irregular edge of thyroid nodules (OR = 2.478, 95%CI 1.077–5.705).ConclusionThis study demonstrates that depression, anxiety, and stress were associated with the morbidity of thyroid nodules and thyroid ultrasound characteristics. During COVID-19, people’s negative emotions increased significantly compared to before. Negative emotions might be harmful to thyroid health. Therefore, during periods of high stress, strategies to prevent psychological problems should be implemented to improve thyroid health.