Table 4

Copy number variations of mtDNA in early-stage laryngeal cancer — univariate associations with clinicopathological characteristics
Characteristics Copy number <4.02 Copy number >5.42
OR* (95% CI) P OR* (95% CI) P
Age 1.00 (0.94-1.06) 0.93 1.03 (0.98-1.09) 0.29
Tumor invasion1 1.25 (0.39-4.04) 0.71 0.48 (0.15-1.52) 0.21
Smoking history2 0.25 (0.05-1.31) 0.10 0.17 (0.04-0.85) 0.03
Survival status3 1.09 (0.34-3.54) 0.88 0.54 (0.17-1.69) 0.29

*OR: odds ratio with 95% confidence interval; 1Tumor invasion (T1; T2; T3; T4); 2Smoking history (at least 10 pack-years); 3Survival status (Alive vs. Dead); The cases with 4.02-5.42 mtDNA copies were used as reference.

Dang et al.

Dang et al. Diagnostic Pathology 2014 9:28   doi:10.1186/1746-1596-9-28

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