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Table 2 Distribution of the allele frequency of rs1799971 among Arab population

From: The frequency of DRD2 rs1076560 and OPRM1 rs1799971 in substance use disorder patients from the United Arab Emirates

Cohort Case Control p* OR (95% CI) p-hetero**
AA AG GG Sum MAF (%) AA AG GG Sum MAF (%)
UAE 175 73 2 250 15.4 171 83 8 262 18.9 0.12 0.78 (0.56–1.08)  
Egypt-Arabs 69 8 0 77 5.2 43 7 0 50 7.0 0.54 0.73 (0.26–2.07)  
Simple combination 244 81 2 327 13.0 214 90 8 312 17.0 0.04 0.73 (0.51–0.99)  
M-H adjusteda             0.78 (0.57–1.06) 0.75
  1. CI confidence intervals, MAF minor allele frequency, OR odds ratio
  2. p value of Cochran–Armitage test using allelic model
  3. ** p-hetero: p value of heterogeneity of Breslow–Day of homogeneity test
  4. aCochran–Mantel–Haenszel test (CMH) is a test used in the analysis of stratified or matched categorical data