Non-alcoholic fatty liver disease (NAFLD)
Nonalcoholic fatty liver disease (NAFLD) is becoming the most common cause of chronic liver disease in the developing world, found in 17-30% of the population in Western countries and 2-4% worldwide. NAFLD is diagnosed predominantly in the fourth through sixth decades of life, although the childhood obesity epidemic has caused an increase in the rate of pediatric NAFLD. The prevalence of NAFLD varies by ethnicity, affecting ~45% of Hispanics, 33% of Whites, and 24% of Blacks. Among Whites, NAFLD is more common in men than in women but not in other racial background (Angulo, P. (2007)).
Alcoholic Fatty Liver Disease (ALD):
In order to compare the genetic or clinical results between non-alcoholic and alcoholic fatty liver disease, we will also collect individuals with alcoholic fatty liver condition using available ICD-9 code: