Major depressive disorder is associated with mitochondrial ND6 T14502C mutation in two Han Chinese families

Table 1 Summary of clinical molecular data for two probands carrying the ND6 T14502C mutation

Subject	Gender	Age of test (years)	Age of onset (years)	First episode	History of suicide attempts	Psychotic symptoms	HDRS	Level of depression	MtDNA haplogroup
NB053-II-2	F	43	43	Yes	No	Yes	26	Severe	M10
2NB038-II-3	M	53	52	Yes	No	No	23	Moderate	H2

F: Female; M: Male; HDRS: Hamilton depression rating scale; MtDNA: Mitochondrial DNA.