Association of Coffee or Green Tea with Ferritin or Hemoglobin in Premenopausal Women / 가정의학회지

ABSTRACT

Background@#This study aimed to examine the association between coffee or green tea consumption and ferritin or hemoglobin levels in premenopausal women. @*Methods@#We used the fifth Korea National Health and Nutrition Examination Survey (2010–2012), and a total of 4,322 individuals were surveyed. In women of reproductive age, average ferritin and hemoglobin levels were calculated according to coffee or green tea consumption. Covariates included in the analysis were demographic variables, such as age, body mass index, education, drinking, smoking, history of hypertension, history of diabetes diagnosis, physical activity, total energy intake, and daily iron intake. @*Results@#In 4,322 participants, the average hemoglobin level was 12.90±0.02 g/dL, and the average level of ferritin was 31.95±0.67 ng/mL. As a result of testing, correlation between ferritin and coffee intake and difference in ferritin levels according to coffee consumption was significant (P2 cups of coffee significantly affect ferritin levels in Korean premenopausal women.