Table 4.

Copy number of mtDNA in gliomas: multivariable models that assessed gender, age, tumor grade, KPS, recurrence, KPS and survival status

Characteristics	Copy number	P
	OR* (95% CI)
Male vs. Female	0.70 (0.32-1.54)	0.38
Age1	0.88 (0.69-1.11)	0.27
WHO grade2	0.42 (0.18-0.98)	0.04
Recurrence	0.79 (0.24-2.66)	0.71
KPS3	1.65 (0.75-3.60)	0.21
Survival	0.62 (0.21-1.79)	0.37

^*OR: odds ratio with 95% confidence interval (CI);

¹Age (per 10 years);

²WHO grade (I/II; III/IV);

³KPS (≤ 80; > 80).