1367-P: Type 2 Diabetes Mellitus and Obesity Amplifies Nonalcoholic Fatty Liver Disease Risk with Age

Nonalcoholic fatty liver disease (NAFLD) is becoming increasingly prevalent in the general population with multiple known metabolic risk factors. There is limited evidence on the impact of age on the prevalence of hepatic steatosis and fibrosis, and their relationship to cardiometabolic risk factors. To this end, we recruited 761 patients 35-75 years of age, with and without T2DM, who underwent screening for NAFLD with laboratory tests and imaging by elastography (steatosis by controlled attenuation parameter [CAP]; fibrosis by liver stiffness measurement [LSM]). Patients were divided into 3 age groups: <45 years (young), 45-64 years (middle age), and ≥65 years old (older age), with results reported in this order. Of the 761 patients included, 21% (n=161) were young, 52% (n=397) middle age, and 27% (n=203) older. In the older age group, prevalence of obesity was lower (53% vs. 53% vs. 40%, p=0.01) but T2DM was higher (15% vs. 39% vs. 44%; p<0.01). Similarly, hypertension, atherogenic dyslipidemia, and use of antihypertensives and statins were more frequent in the older age group. Despite this, there were no differences in steatosis (CAP ≥274 dB/m: 50% vs. 54% vs. 52%, p=0.7). A marker of NAFLD disease activity (NIS4) worsened with increasing age (p<0.01). There was a trend for fibrosis (LSM≥7.0 kPa) to be higher in middle (11%) and older (8%) vs. younger (5%) age. After multivariable analysis (sex, race, ethnicity, BMI, A1c, cardiometabolic risk factors), BMI was associated with both steatosis and fibrosis in all age groups (p<0.01). There was a significant association between A1c as a continuous variable and steatosis only in the older age group (OR 2.8, 95% CI 1.6-4.9), while its association with fibrosis started at middle age (OR 1.3, 95% CI 1.1-1.7) and was stronger in older age (OR 1.8, 95% CI 1.01-3.2). Conclusion: Age was not associated with steatosis or fibrosis. BMI was the strongest predictor of hepatic steatosis and synergizes with T2DM for the development of fibrosis with age. Disclosure A. Sharma: None. E. Godinez Leiva: None. R. Lomonaco: None. E. Valdez Saenz: None. A. Ortiz Rocha: None. M.A. Gonzalez: None. S.A. Marangi: None. S. Shrestha: None. S.S. Shetty: None. J.T. Budd: None. S. Kalavalapalli: None. D. Barb: None. K. Cusi: Research Support; Echosens, Inventiva. Consultant; Poxel SA. Research Support; LabCorp, Zydus. Consultant; Altimmune, Arrowhead Pharmaceuticals, Inc., AstraZeneca, 89bio, Inc., Bristol-Myers Squibb Company, Lilly, Madrigal Pharmaceuticals, Inc., Merck & Co., Inc., Medscape, Myovant, Novo Nordisk, ProSciento, Quest Diagnostics, Sagimet, Sonic Incytes, Terns.