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Table 1 Clinicopathological characteristics of laryngeal cancer patients

From: Low copy number of mitochondrial DNA (mtDNA) predicts worse prognosis in early-stage laryngeal cancer patients

Characteristics

No. of patients (%)

Gender

 

 Male

197 (96.6)

 Female

7 (3.4)

Age, years

 

 Mean

60.75

 SD

9.64

Differentiation

 

 Well/moderate

187 (91.7)

 Poor/undifferentiation

17 (8.30)

Tumor invasion

 

 T1

61 (29.9)

 T2

70 (34.3)

 T3

57 (27.9)

 T4

16 (7.8)

TNM stage

 

 I

56 (27.5)

 II

35 (17.2)

 III

74 (36.3)

 IV

39 (19.1)

Lymph node metastasis (LNM)

 

 Yes

66 (32.4)

 No

138 (67.6)

Smoking history

 

 Yes

141 (69.1)

 No

63 (30.9)

Pack-years

 

 ≤30

149 (73.0)

 >30

55 (27.0)

Survival status

 

 Dead

113 (55.4)

 Alive

91 (44.60)