Table 3. Heteroplasmy mutations shared at least two samples either in Alzheimer (AD) patients or control (ND) samples.

SNPs	Samples	#of Samples detected	Average frequency of SNPs	St dev
C64T	AD	6	2.3%	0.3%
C64T	ND	4	6.8%	9.4%
G71del	AD	10	7.1%	3.7%
G71del	ND	10	6.9%	4.9%
T72C	AD	8	9.5%	4.2%
T72C	ND	1	2.1%
A189G	AD	12	4.6%	2.2%
A189G	ND	10	4.5%	1.8%
C16148T	AD	0
C16148T	ND	2	2.5%	0.5%

Note: # of samples detected = Total numbers of samples has been detected in this type of SNPs from AD(N = 13),or ND (N = 12)