Table 3 Copy number variations of mtDNA in gastric cancer — univariate associations with clinicopathological characteristics

Male vs. Female

1.55 (0.42-5.70)

0.51

1.75 (0.37-8.30)

0.48

Age¹

1.00 (0.65-1.52)

0.98

1.10 (0.67-1.79)

0.71

Tumor localization²

1.11 (0.51-2.42)

0.80

1.22 (0.50-2.99)

0.66

Tumor size³

1.31 (0.66-2.60)

0.45

1.37 (0.63-3.01)

0.43

Differentiation⁴

1.78 (0.58-5.49)

0.32

1.11 (0.31-4.04)

0.87

Tumor invasion⁵

0.82 (0.46-1.47)

0.50

0.69 (0.36-1.34)

0.27

TNM stage⁶

0.84 (0.40-1.78)

0.65

0.86 (0.36-2.03)

0.73

Lymph node metastasis

4.93 (1.28-19.04)

0.02

4.00 (0.91-17.58)

0.07

Survival status⁷

1.20 (0.39-3.73)

0.75

1.81 (0.50-6.50)

0.37