• Hee Yun Lee, Taeho Greg Rhee, Nam Keol Kim, and Jasjit S Ahluwalia.
• School of Social Work, College of Education and Human Development, University of Minnesota, Twin Cities, MN, USA, hylee@umn.edu.
• J Gen Intern Med. 2015 Aug 1; 30 (8): 111811241118-24.

BackgroundAsian American immigrants have a lower level of health literacy than non-Latino whites, but their level of health literacy and its impact on health outcomes may differ among subgroups.ObjectiveWe investigated the level of health literacy across five subgroups of Asian American immigrants and explored the association between health literacy and self-rated health status and symptoms of depression.DesignWe utilized a cross-sectional survey research design and a population-based sampling strategy using the 2007 California Health Interview Survey (CHIS).ParticipantsWe sampled 30,615 non-Latino whites and 3,053 Asian American immigrants (1,058 Chinese, 598 Koreans, 534 Filipinos, 416 South Asians, and 447 Vietnamese).Main MeasuresWe used two questions as proxy measures to assess the level of health literacy in non-Latino whites and in both aggregated and disaggregated Asian American immigrant groups. We then investigated the effect of health literacy on two main health outcomes: self-rated health status and depression symptoms.Key ResultsThe level of health literacy varied across the five subgroups of Asian American immigrants. Chinese, Korean, and Vietnamese groups had the lowest levels of health literacy, while Filipinos showed the highest level. Health literacy was positively correlated with health status in Chinese and Korean immigrants, and negatively correlated with depression symptoms in Korean and South Asian immigrants.ConclusionWe found heterogeneity in health literacy among Asian American immigrants and found that health literacy had varying associations with health outcomes. The aggregated Asian American immigrant group results may mask the true health disparities that each Asian American immigrant group faces. Koreans were the only group found to have a significant association between the proxy for health literacy and both health outcomes. Further research is needed to better understand the causes of heterogeneity and to investigate health literacy as a critical determinant of immigrant health.

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