Fish, Polyunsaturated Fatty Acids Intake and Mortality

Data from the China Health and Nutrition Survey (CHNS, from 1989 to 2011) and National Health and Nutrition Examination Survey (NHANES), including NHANES III conducted in 1988-1994 and continuous NHANES 1999-2010 were used to investigate the associations of fish and polyunsaturated fatty acids intake with mortality.The following variables were used: 1. Demographics: age, sex, race/ethnicity, residence 2. Socioeconomic variables: education, marital status, 3. Dietary variables: Intakes of fish, polyunsaturated fatty acids, total energy, vegetables, fruits, red meat and saturated fat 4. Clinical assessments: hypertension, diabetes, cancer, cardiovascular disease (CVD), family history of CVD