Barely Significant

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* Please avoid the term "marginally significant" and refrain from interpreting "differences" with a p-value larger than 0.05. * As a robustness test, check the OLS findings with a regression model that is more appropriate for count data (Holt-and-Laury task, Eckel-and-Grossman task).
After confirming that the haptoglobin genotype was distributed according to Hardy-Weinberg equilibrium in both PCOS patients and controls (data not shown), we found that the Hp 2 allele was more frequent in the former (62% vs 52%, χ 2 = 5.191, P = 0.023), explaining a borderline significant tendency towards a higher frequency of Hp 2 /Hp 2 genotype, and to a reduced frequency of the Hp 1 /Hp 1 genotype, in PCOS patients compared with the controls ( Table 3 ).