Harvey J, Lotze M, Stevens M B, Lambert G, Jacobson D
Arthritis Rheum. 1981 May;24(5):717-21. doi: 10.1002/art.1780240515.
The Mille Lacs Band of Chippewa Indians in central Minnesota was screened for rheumatoid arthritis, with a 77% completion rate of the reservation census. Rheumatoid arthritis was found in marked excess, namely 6.8% of those evaluated or, minimally, 5.3% of the total band if all persons had been evaluated with no additional cases identified. This relatively closed population thus provides an opportunity to assess genetic and environmental factors of significance in this disease.
明尼苏达州中部的齐佩瓦印第安人米勒莱克斯部落接受了类风湿性关节炎筛查，保留地人口普查的完成率为77%。类风湿性关节炎的发病率显著偏高，在接受评估的人群中占6.8%，或者说，如果所有人都接受了评估且未发现其他病例，那么在整个部落中至少占5.3%。因此，这个相对封闭的人群为评估该疾病中具有重要意义的遗传和环境因素提供了一个机会。
