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. 2017 Jan-Mar;15(1):105–111. doi: 10.1590/S1679-45082017RW3827

Table 3. Summary of pooled effects.

  Number of studies Homozygous Recessive Number of studies Dominant Co-dominant




OR (95%CI) p value Phet I2 OR (95%CI) p value Phet I2 OR (95%CI) p value Phet I2 OR (95%CI) p value Phet I2
Overall 9 5.55 (1.86-16.55) 0.002 0.03 52 3.23 (1.86-5.59) <0.0001 <0.0001 85 10 3.14 (1.91-5.17) <0.0001 <0.0001 83 3.14 (1.93-5.10) <0.0001 <0.0001 86
HWE only 8 9.45 (2.91-30.71) 0.0002 0.02 57 7.19 (2.61-19.82) <0.0001 0.09 43 9 2.99 (1.78-5.02) <0.0001 <0.0001 85 3.08 (1.84-5.14) <0.0001 <0.0001 88
Italian studies only 7 11.12 (2.44-50.71) 0.002 0.02 59 8.72 (2.27-33.53) 0.002 0.07 49 8 3.83 (2.28-6.45) <0.0001 <0.0001 76 3.86 (2.40-6.21) <0.0001 <0.0001 78
Brazil* 1 2.35 (0.39-14.34) - - 1.95 (0.32-11.83) - - 1 2.28 (1.35-3.85) - - 2.05 (1.28-3.29) - -
Poland* 1 1.84 (0.45–7.50) - - 1.83 (0.45-7.42) - - 1 1.08 (0.70-1.67) - - 1.11 (0.75-1.65) - -

* Odds ratio and 95% confidence interval are study-specific values.

OR: odds ratio; 95%CI: 95% confidence interval; Phet: p value for heterogeneity; I2 are expressed in %.