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. 2017 Oct 16;7:245. doi: 10.3389/fonc.2017.00245

Table 1.

Demographic characteristics, patients’ stratification by pTNM, margin status, and types of cordectomy performed.

Variables Entire cohort Group A Group B
Number of patients 634 507 127
Age 64.1 ± 10.4 64.1 ± 10.2 64.3 ± 11.2
Male/female 560/74 467/40 93/34
T category
pTis 102 102
pT1a 316 316
pT1b 89 89
pT2 127 127
Margin status, no. (%)
NEG 231 (36.4) 199 (39.2) 32 (25.2)
CS 79 (12.4) 58 (11.4) 21 (16.5)
CD 35 (5.5) 25 (4.9) 10 (7.9)
SS 146 (23) 114 (22.5) 32 (25.2)
MS 94 (14.8) 77 (15.2) 14 (13.4)
DEEP 48 (7.5) 33 (6.5) 15 (11.8)
Type of cordectomy
I 48 48
II 275 262
III 122 111
IV 40 27 23
V 141 56 99
VI 8 3 5

NEG, negative margin; CS, close superficial; CD, close deep; SS, positive single superficial; MS, positive multiple superficial; DEEP, positive deep margins.