Survey of Nonalcoholic Fatty Liver Disease Knowledge, Nutrition, and Physical Activity Patterns Among the General Public in Beijing, China

Non-alcoholic fatty liver disease related knowledge among a sample of Egyptians: an exploratory cross-sectional study

Introduction

The global prevalence of Non-alcoholic fatty liver disease (NAFLD) is about 25% worldwide making it an actual health disaster. This study aimed to assess non-alcoholic fatty liver disease (NAFLD)-related knowledge in a sample of Egyptians.

Materials and methods

This exploratory cross-sectional study was conducted on 3,124 individuals using 2000 online and 1,124 printed questionnaire forms. These questionnaires, covering sociodemographic characteristics and fatty liver-related knowledge, comprised 30 items. These items include ten questions on definition, symptoms, and complications: 14 about risk factors, and six about prevention and therapy. The data were analyzed using SPSS. Categorical variables were expressed in proportions and percentages. Chi-square and Fisher's exact tests were applied as appropriate. For quantitative variables, the t-test, Mann-Whitney U test, Kruskal-Wallis test, and ANOVA test were used for comparisons.

Results

A total of 3,124 respondents were enrolled in the current study. More than half (57%) were females, and 25% ranged in age from 18 to 29. 10.8% of the participants believed that fatty liver patients were asymptomatic, and 34% knew that fatty liver disease was caused by fat accumulation. Regarding predisposing factors, hypercholesterolemia, increased fat in the diet, and obesity had the highest proportion of accurate responses (60, 54, and 46.6%, respectively). On the other hand, 89.3% believed it could be prevented, and 81.4% of the respondents knew that weight reduction could prevent the condition. All respondents (100%) stated wrongly that it was a familial disease related to aging, and most participants (97.3%) did not believe that fatty liver could be treated. Females demonstrated a significantly higher score in preventive measures, while the employed participants scored significantly higher in general knowledge of fatty liver, risk factors, and preventive measures.

Conclusion

Despite the increasing NAFLD prevalence, the current study indicated that Egyptians had fair to moderate knowledge about fatty liver and its risk factors, preventive measures, and therapy. However, a false belief was documented by all respondents that it is a disease that runs in families and occurs only in old age. A fundamental shift in healthcare management with a prioritization of prevention, proactive measures, and early detection of NAFLD should be emphasized.

Prevalence, trends, and characteristics of metabolic dysfunction-associated steatotic liver disease among the US population aged 12-79 years

BACKGROUND AND AIMS

Clinical observation revealed an increase in metabolic dysfunction-associated steatotic liver disease (MASLD) prevalence among adults and adolescents and young adults (AYA). However, its prevalence trend in specific subgroups and its characteristics are unclear.

APPROACH AND RESULTS

This cross-sectional study included adults and AYA aged 20-79 and 12-19 years, respectively, from the National Health and Nutrition Examination Survey from 1999 to 2018. MASLD was defined as US Fatty Liver Index ≥30 in adults and alanine amino transaminase elevation and obesity in AYA. Joinpoint and logistic regression were used to evaluate the MASLD prevalence trend and its associated characteristics. MASLD was diagnosed in 17 156 892 of 51 109 914 (33.6%) adults and 1 705 586 of 29 278 666 AYA (5.8%). During the study period, MASLD prevalence significantly increased from 30.8% to 37.7% ( P  < 0.01) in adults and in subgroups of female participants, individuals aged 20-45 and 61-79 years, and non-Hispanic white individuals. Conversely, MASLD prevalence did not significantly change in AYA (from 5.1% to 5.2%, P  = 0.139), except in the subgroup of Mexican Americans (from 8.2% to 10.8%, P  = 0.01). Among adults, high MASLD prevalence was associated with male sex, Mexican American ethnicity, age >50 years, being unmarried, poverty income ratio <130, poor or fair health condition, obesity or overweight, and chronic conditions. Among AYA, high MASLD prevalence was associated with male sex, poverty income ratio <130, and education.

CONCLUSION

Accordingly, we concluded that health care providers should prevent and treat conditions associated with MASLD by raising awareness of the increasing trend of MASLD.

Factors Associated with Awareness and Knowledge of Nonalcoholic Fatty Liver Disease, a Liver Cancer Etiological Factor, Among Chinese Young Adults

Despite the increasing prevalence of nonalcoholic fatty liver disease (NAFLD), a liver cancer etiological factor, among Chinese young adults (CYA), there is a lack of study assessing awareness and knowledge of NAFLD among them. This study aimed to assess awareness and knowledge of NAFLD, and identify the factors associated with awareness and knowledge of NAFLD among CYA. We conducted a survey to assess awareness and knowledge of NAFLD among students who enrolled in one university undergraduate program in 2018, 2019, and 2020 through a newly developed web-based, self-administered questionnaire. The outcomes included awareness of NAFLD and knowledge score of NAFLD. We conducted unadjusted and adjusted analyses of associated factors with these outcomes. A total of 1373 students participated in the survey. Of all participants, 26.2% reported that they had heard of NAFLD, 7.7% reported that they had heard of lean NAFLD, and 11.1% received ≥ 20 points in the knowledge section of NAFLD. The mean and median scores were 9.35 (Std = 7.67) and 9 (range 0-27). Factors associated with having awareness and knowledge (≥ 20 points) of NAFLD included medical background, high medical knowledge level, and family history of NAFLD. There was low NAFLD awareness and knowledge among CYA aged 18 to 25 years. Our findings point to the need to develop an educational intervention for CYA to improve their NAFLD awareness and knowledge. Further studies should include information on physical activity and dietary habits to test whether NAFLD awareness and knowledge impact those habits.

Association of Chinese Visceral Adiposity Index and Its Dynamic Change With Risk of Carotid Plaque in a Large Cohort in China

Background

We aimed to evaluate the association between the Chinese visceral adiposity index (CVAI) and its dynamic change and risk of carotid plaque based on a large Chinese cohort.

Methods and Results

This cohort included 23 522 participants aged 20 to 80 years without elevated carotid intima‐media thickness and carotid plaque at baseline and who received at least 2 health checkups. CVAI was calculated at baseline and at every checkup. The dynamic change in CVAI was calculated by subtracting CVAI at baseline from that at the last follow‐up. Cox proportional hazard regression model was used to estimate hazard ratios (HRs) and 95% CIs. The restricted cubic spline was applied to model the dose‐response association between CVAI and carotid plaque risk. During the 82 621 person‐years of follow‐up, 5987 cases of carotid plaque developed (7.25/100 person‐years). We observed a significant positive correlation between CVAI and carotid plaque risk (HR, 1.53; 95% CI, 1.48–1.59 [P<0.001]) in a nonlinear dose‐response pattern (P_nonlinearity<0.001). The sensitivity analyses further confirmed the robustness of the results. The association was significant in all subgroup analyses stratified by sex, hypertension, and fatty liver disease except for the diabetes subgroup. The association between CVAI and carotid plaque risk was much higher in men than in women. No significant association was identified between change in CVAI and carotid plaque risk.

Conclusions

CVAI was positively associated with carotid plaque risk in a nonlinear dose‐response pattern in this study. Individuals should keep their CVAI within a normal level to prevent the development of carotid plaque.

The Management of the Hospitalized Ulcerative Colitis Patient, the Medical-Surgical Conundrum

PURPOSE OF REVIEW

In this study we present the evidence based management for patients hospitalized for UC with a special focus on the synergic approach of the two key actors of the inflammatory bowel disease multidisciplinary team (IBD-MDT): gastroenterologist and surgeon.

RECENT FINDINGS

Focused treatment by a specialized IBD-MDT and early involvement of the colorectal surgeon in the management of hospitalized ulcerative colitis patients is advocated. The colectomy rate has not changed over the years. Moreover delayed surgery after admission is burden by increase complication and mortality. Thus, it is pivotal to identify the patients who are likely to undergo surgery, by mean of predictors of outcome, and to not prolong ineffective medical treatment. The perfect timing based on clinical close monitoring is crucial. Up to 25% of patients with ulcerative colitis (UC) may require hospitalization. The aim of admission is to evaluate severity of the disease, exclude infections and establish proper treatment while monitoring the response. During admission, the patient has to be closely observed for the possible development of toxic megacolon or perforation, which should prompt emergency colectomy. Up to 30% of UC patients will fail to respond to initial intravenous corticosteroid. Non responder or partial responder to medical therapy should be evaluated for timely surgery or could be considered for rescue medical therapy.

Diversity in NAFLD: A Review of Manifestations of Nonalcoholic Fatty Liver Disease in Different Ethnicities Globally

Globally, the rise in prevalence of obesity and metabolic syndrome as a whole has been linked to increased access to processed foods, such as refined sugars and saturated fats. Consequently, nonalcoholic fatty liver disease (NAFLD) is on the rise in both developed and developing nations. However, much is still unknown on the NAFLD phenotype with regards to the effect of ethnic diversity. Despite similarities in dietary habits, it appears that certain ethnicities are more protected against NAFLD than others. However, manifestations of the same genetic polymorphisms in different groups of people increase those individuals' predisposition to NAFLD. Diets from different regions have been associated with a lower prevalence of NAFLD and have even been linked to regression of hepatic steatosis. Socioeconomic variations amongst different regions of the world also contribute to NAFLD prevalence and associated complications. Thus, a thorough understanding of ethnic variability in NAFLD is essential to tailoring treatment recommendations to patients of different backgrounds.

Case-finding strategies in non-alcoholic fatty liver disease

Among the large population of patients with non-alcoholic fatty liver disease (NAFLD), identifying those with advanced disease remains challenging. Many patients are diagnosed late, following the development of liver-related complications, leading to poor clinical outcomes. Accumulating evidence suggests that using non-invasive tests for liver fibrosis in patients with metabolic risk factors improves the detection of patients in need of specialised management and is cost-effective. Because of the vast number of patients requiring evaluation, the active participation of general practitioners and physicians who manage patients with metabolic disorders, such as diabetologists, is crucial; this calls for the increased awareness of NAFLD beyond liver clinics. Non-invasive case-finding strategies will need to be further validated and generalised for upcoming drug therapies to have the required impact on the worldwide burden of NAFLD.

Association between Inflammatory Biomarkers and Nutritional Status in Fatty Liver

The prevalence and progression of non-alcoholic fatty liver disease (NAFLD) is mediated via several factors correlating with hepatic necroinflammation (adipokines/cytokines). This study was performed to analyze the level of inflammatory markers according to the presence of NAFLD and to identify related nutritional factors. A total of 80 adults were classified into 2 groups (healthy and NAFLD), and their body composition, blood tests, and eating habits were evaluated. In addition, inflammatory markers (adiponectin, high-sensitivity C-reactive protein [CRP], and tumor necrosis factor-alpha [TNF-α]), nutrient intake status, and dietary quality were compared. The quality of diet was assessed according to the nutrient adequacy ratio and the mean adequacy ratio (MAR). The NAFLD group had a higher body mass index (p < 0.001) than the healthy group and also carried significantly higher CRP levels (p < 0.001) but lower adiponectin (p = 0.001). TNF-α levels increased significantly with fatty liver grade (p = 0.023). The NAFLD group showed significantly higher intake of energy, carbohydrates, iron, sodium, vitamin A and saturated fatty acids, but significantly lower intake of zinc and vitamin E than the healthy group. The MAR values were slightly higher in the NAFLD group but without any significant difference. The levels of adiponectin and vitamin E showed a significant inverse correlation (p < 0.05). Nutritional management of NAFLD patients is important, and the intake of antioxidant and anti-inflammatory nutrients such as zinc and vitamin E should be emphasized.