than a result of their intercorrelation. Furthermore, results were almost identical whether or not inbreeding coefficients were winsorised (i.e. extreme values set at 3 standard deviations from the mean; see Supplementary Table 8), suggesting that the results are not driven by outliers resulting from close inbreeding. Finally, significant effects could be observed within separate subsamples (though not consistently, due to reduced power), reinforcing that the effect is not due to population stratification (see Supplementary Table 8).
