Table 4. Joint effects between mtDNA copy number and pigmentation.

mtDNA CNV	Low (<0.99)	High (≥0.99)
Hair color
Black or brown	1.00	1.57 (1.06–3.23)
Blond or red	1.46 (1.03–2.98)	3.42 (1.42–5.11)
Eye color
Not blue	1.00	1.34 (1.01–1.96)
Blue	1.42 (1.03–2.76)	2.98 (1.36–4.03)
Skin color
Dark brown	1.00	1.43 (1.05–1.89)
Fair	1.53 (1.06–2.85)	3.26 (1.51–4.87)