TABLE 3.

Patterns of the D_xy statistic as an uncorrected measure of absolute sequence divergence between populations

Pairwise comparisons	X-linked	SE	Autosomal	SE	F-value	P-value
United States–Caribbean	0.43	0.06	0.7	0.06	8.86	0.005
United States–West Africa	0.82	0.03	0.87	0.04	0.94	0.33
United States–Zimbabwe	0.93	0.02	0.94	0.02	0.12	0.74
Caribbean–West Africa	0.79	0.05	0.65	0.04	4.47	0.04
Caribbean–Zimbabwe	0.92	0.03	0.71	0.04	13.6	0.0007
West Africa–Zimbabwe	0.46	0.07	0.42	0.07	0.18	0.67

The sample size per location is 21 X-linked loci and 23 autosomal loci. ANOVA: X-linked pairwise—F-value = 14.15, P < 0.0001; autosomal pairwise—F-value = 18.87, P < 0.0001; Measures of D_xy are scaled within each fragment by the maximum pairwise value to compare D_xy at the same scale across fragments.