Table 2. Mitochondrial DNA haplogroup associations with highly significant SNPs in the PECI and ASCM4 genes.

		P-value for Association with Mitochondrial DNA Haplogroup (Mantel-Haenszel Chi-Square Test - Additive Model)
Gene	SNP	H	J	I	N1I	T	U	W	X
PECI	rs629362	0.8849	0.7312	0.7500	0.8794	0.9503	0.5194	0.8786	0.8405
ASCM4	rs7961991	0.5018	0.4424	0.1310	0.4882	0.4739	0.3474	0.1200	0.0094

Only ASCM4 was significant with haplogroup X, however X included only 22 individuals, therefore it is unlikely to explain the associations observed.