Table 3.

Copy number of mtDNA in gliomas: univariate associations with clinicopathological characteristics

Characteristics	Copy number	P
	OR* (95% CI)
Male vs. Female	0.87 (0.55-1.38)	0.55
Age1	0.83 (0.67-1.04)	0.11
WHO grade2	0.34 (0.16-0.73)	0.006
Pathological diagnosis3	0.71 (0.47-1.07)	0.10
Recurrence	0.40 (0.17-0.96)	0.04
Smoking history	0.92 (0.42-2.02)	0.84
Seizures	2.21 (1.07-4.54)	0.03
KPS4	1.73 (0.83-3.59)	0.14
Survival status5	0.36 (0.17-0.76)	0.007

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

¹Age (per 10 years);

²Tumor grade (I/II; III/IV);

³Pathological diagnosis (DA; OL; AOA; GBM; EP);

⁴KPS (≤ 80; > 80);

⁵Survival status (Alive vs. Dead).