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Fig. 1 | Sports Medicine - Open

Fig. 1

From: The Association of Aquaporin-1 Gene with Marathon Running Performance Level: a Confirmatory Study Conducted in Male Hispanic Marathon Runners

Fig. 1

Forest plot showing the results of a meta-analysis for the association between the C > G (rs1049305) variant within the 3′ untranslated region of the Aquaporin 1 gene in cases (fast marathon runners) and controls (slow marathon runners) as reported in the original study by Martinez et al. [5] and the present replication study. Each black square represents the odds ratios and the horizontal lines denote the 95% confidence interval for each of the identified sources. The diamond symbol shows the meta-analysis cumulative fixed effect odds ratio (OR = 1.28) for the association of the combined data of Martinez et al. [5] and the actual replication. The width of the diamond refers to the 95% confidence interval (95% CI = 1.13–1.45), p value < 0.001

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