For Amerindian contribution in MAM and MXN the correlation values using In4 markers was also strong but did show a discernable decrease when 48 or 24 In4 markers were examined. For the In2 AIMs optimized for European/Amerindian differences, the results showed stronger correlations (e.g. 0.798 for 48 In2 European/Amerindian versus 0.733 for 48 In4). Similar results are also shown for the European contribution in PRA, however, the correlations were markedly lower. The correlations for European contribution in PRA population were 0.877, 0.587, 0.560, and 0.519 for 96 In4, 64 In4, 48 In4 and 24 In4.
