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. Author manuscript; available in PMC: 2015 Jan 1.
Published in final edited form as: Ann Hum Genet. 2013 Nov 25;78(1):33–39. doi: 10.1111/ahg.12046

Table 2.

Detailed results of genotypic association (2 d.f. test) of rs1076560 and opioid addiction in African Americans and European Americans.

Population Phenotype CC CA AA P-value
African American Cases 77.1% 21.3% 1.6% 0.051
Controls 82.8% 16.7% 0.5%
European American Cases 68.5% 28.7% 2.8% 0.046 (0.013*)
Controls 74.3% 23.4% 2.3%
*

Dominant test for association p-value. The Chi-square test was performed for European Americans and the Fisher's exact test for African Americans.