Bucking the popular notion that all Asian Americans are uniformly healthy, a new analysis from the Kaiser Family Foundation and the Asian and Pacific Islander Health Forum shows great disparities of health coverage and health care between Asian and Pacific Islander subgroups. For example, the analysis finds that Korean Americans and Vietnamese Americans face greater challenges than Asian Indian Americans and Japanese Americans for some key health measures. Among other findings: - The percent of uninsured nonelderly varies widely, from 31 percent of Koreans, 24 percent of Native Hawaiian and Pacific Islanders, and 21 percent of Vietnamese to 12 percent of Japanese and Asian Indians and 14 percent of Filipinos. In comparison, 12 percent of nonelderly non-Hispanic Whites are uninsured. - Nonelderly Koreans are least likely to have employer-sponsored health coverage (49 percent), while Asian Indians have the highest rate of employer-sponsored coverage (77 percent). - Vietnamese adults are twice as likely to report being in fair or poor health (15 percent) as the healthiest subgroup, Japanese adults (8 percent). It is believed that the variation in health coverage may be due to how recently certain groups arrived in the United States, where they live geographically, the size of the firm where they work and income. The survey is unique in actually separating Asian and Pacific Islander subgroups, instead of treating 'Asian-Americans' as a homogenous group.