Table 1.

The position of nucleotides in the mtDNA control region is significantly more frequent in patients with presbycusis than control subjects

Nucleotide position	rCRS	Variant	Presbycusis (%)	Control (%)	P-value
15,954	A	C	5.2	0	0.009
16,223	C	T	31	17.7	0.026
16,249	T	C	8.6	1.8	0.02
16,311	T	C	27.6	14.1	0.01

Abbreviations: rCRS, revised Cambridge Reference Sequence; mtDNA, mitochondrial DNA.