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Table 2 mtDNA copy number by host characteristics of glioma cases and healthy controls

From: Association of leukocyte mitochondrial DNA content with glioma risk: evidence from a Chinese case–control study

Variables Case Control Pvalue
No. mtDNA copy number, median (range) No. mtDNA copy number, median (range)
Sex      
Male 241 0.98 (0.12 to 3.89) 241 0.70 (0.07 to 2.72) < 0.001
Female 173 1.01 (0.02 to 3.22) 173 0.74 (0.15 to 2.52) < 0.001
P value   0.431   0.101  
Age, years      
<47 204 0.96 (0.02 to 3.89) 206 0.70 (0.13 to 2.72) < 0.001
≥47 210 1.03 (0.03 to 3.55) 208 0.72 (0.07 to 2.52) < 0.001
P value   0.165   0.877  
Smoking status      
Never 318 0.98 (0.02 to 3.61) 329 0.69 (0.07 to 2.72) < 0.001
Ever 96 1.02 (0.03 to3.89) 85 0.71 (0.12 to 2.55) 0.001
P value   0.251   0.267  
Family history of cancer      
Yes 45 0.90 (0.03 to 3.26) 32 0.72 (0.18 to 2.66) 0.002
No 369 0.99 (0.02 to 3.89) 382 0.69 (0.07 to 2.72) < 0.001
P value   0.151   0.803  
WHO grade      
I/II 175 0.98 (0.04 to 3.55)    
III/IV 239 1.00 (0.02 to 3.89)    
P value   0.982    
  1. mtDNA, mitochondrial DNA.