Investigation of cardiovascular risk factors in diabetic and nondiabetic patients with nonalcoholic fatty liver disease

Abstract

Background: The current study aims to assess cardiovascular risk factors (CVRFs) among diabetic versus nondiabetic nonalcoholic fatty liver disease (NAFLD) patients. NAFLD is the most common hepatic disorder worldwide which is directly associated with diverse CVRFs such as type 2 diabetes mellitus (T2DM) and metabolic syndrome (MS). Materials and Methods: The current cross-sectional population-based study has been conducted on 1031 NAFLD patients. After excluding 340 prediabetes patients, the NAFLD patients were divided into T2DM and normal blood glucose (NBG). Then, CVRFs were compared between the two groups. Results: Out of 691 NAFLD cases included in the study, 337 (48.8%) patients had T2DM. In the T2DM and NBG groups, the body mass index (BMI) was 31.2 ± 4.6 and 29.9 ± 4.3 kg/m2, respectively (P = 0.001). The waist circumference was 102.2 ± 10.2 and 97.6 ± 10.6 cm, respectively (P < 0.001). The systolic blood pressure was 123.3 ± 15.6 and 119.6 ± 13.6 mmHg, respectively (P = 0.043). The triglyceride levels were 191.9 ± 104.7 and 176.5 ± 89.6 mg/dL, respectively (P = 0.042). Generally, these factors were significantly higher among the diabetic patients. Besides, cardiovascular disease (CVD), hypertension, and MS were statistically more prevalent in NAFLD patients with T2DM (P < 0.001) than nondiabetic NAFLD patients. In multiple logistic regression models, the odds ratio of CVD, hypertension, and MS was 2.18, 2.12, and 6.63 for patients with T2DM compared with NBG, respectively. Adjustment was made for age, sex, BMI, smoking, and physical activity. Conclusion: CVRFs were higher in NAFLD patients with T2DM than NAFLD patients with NBG.