… in American Indian21 and Alaskan Native populations.22,23 The American Indian … with a significant American Indian subgroup of glaucoma … the overall and American Indian populations. The mean … Study Groups; AI, American Indian; CI, confidence interval; …… in American Indian21 and Alaskan Native populations.22,23 The American Indian … with a significant American Indian subgroup of glaucoma … the overall and American Indian populations. The mean … Study Groups; AI, American Indian; CI, confidence interval; …