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. 2016 Feb 4;17(3):171–178. doi: 10.1038/gene.2016.2

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Copyright © 2016 Macmillan Publishers Limited

This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article's Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/

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RBC CR1 level varies by Swain-Langley and McCoy genotypes. RBC CR1 level by CR1 Knops blood genotype. (a) Swain-Langley (Sl) and (b) McCoy (McC). Differences in RBC CR1 level by Sl and McC genotypes were tested in a total of 3075 individuals by multivariate linear regression analysis with adjustment for age, α⁺thalassaemia and HbS genotypes. Error bars represent 95% confidence intervals of the mean RBC CR1 level. Numbers in parenthesis reflect total number of samples tested for each genotype group. The Sl1/1 and McCa/a genotypes were used as the reference genotypes, respectively. Statistically significant differences in RBC CR1 level from the reference genotypes are asterisked, *P<0.05, ***P<0.001.