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Table 1 Clinical characteristics of POCRT and PORT groups in the entire cohort (n = 337) and Matched cohort (n = 264)

From: Role of postoperative chemoradiotherapy in head and neck cancer without positive margins or extracapsular extension: a propensity score-matching analysis

Parameters

Entire cohort

Matched cohort

 

PORT (%)

POCRT (%)

p value

PORT (%)

POCRT (%)

p value

Sex

  

0.231

  

1.000

 Male

157(86.7)

142(91.0)

 

117(88.6)

118(89.4)

 

 Female

24(13.3)

14(9.0)

 

15(11.4)

14(10.6)

 

Age

  

0.265

  

0.796

 > 60

78(43.1)

57(36.5)

 

47(35.6)

44(33.3)

 

 ≤ 60

103(56.9)

99(63.5)

 

85(64.4)

88(66.7)

 

Differentiated type

  

0.588

  

0.336

 Well

48(26.5)

38(24.4)

 

39(29.5)

34(25.8)

 

 Moderately

85(47.0)

82(52.6)

 

60(45.5)

72(54.5)

 

 Poorly

48(26.5)

36(23.1)

 

133(25.0)

26(19.7)

 

pT3-4

  

0.580

  

0.530

 Yes

72(39.8)

67(42.9)

 

50(37.9)

56(42.4)

 

 No

109(60.2)

89(57.1)

 

82(62.1)

76(57.6)

 

pN2-3

  

0.007

  

0.706

 Yes

57(31.5)

72(46.2)

 

54(40.9)

50(37.9)

 

 No

124(68.5)

84(53.8)

 

78(59.1)

82(62.1)

 

PNI

  

0.424

  

0.271

 Yes

35(19.3)

36(23.1)

 

21(15.9)

29(22.0)

 

 No

146(80.7)

120(76.9)

 

111(84.1)

103(78.0)

 

LVI

  

0.330

  

1.000

 Yes

20(11.0)

23(14.7)

 

14(10.6)

13(9.8)

 

 No

161(89.0)

133(85.3)

 

118(89.4)

119(90.2)

 

Stage

  

0.002

  

0.137

 I–II

47(26.0)

19(12.2)

 

27(20.5)

17(12.9)

 

 III–IV

134(74.0)

137(87.8)

 

105(79.5)

115(87.1)

 
  1. POCRT postoperative chemoradiotherapy; PORT postoperative radiotherapy; PNI perineural invasion; LVI lymphvascular invasion