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Table 2 Methylation status of individual genes and associations with disease-free survival using Cox proportional hazards model in 230 patients

From: The neuropeptide genes SST, TAC1, HCRT, NPY, and GAL are powerful epigenetic biomarkers in head and neck cancer: a site-specific analysis

Gene

Methylation status

Overall(%)

Recurrence events

Adjusted RR (95% CI)†

Positive (N = 91)

Negative (N = 139)

SST

Yes

194(84.3)

78

116

 

No

36(15.7)

13

23

0.847 (0.470–1.526)

TAC1

Yes

146(63.5)

65

81

 

No

84(36.5)

26

58

1.620 (1.018–2.578)*

HCRT

Yes

75(32.6)

37

38

 

No

155(67.4)

54

101

1.235 (0.805–1.895)

NPY

Yes

65(28.3)

26

39

 

No

165(71.7)

65

100

1.126 (0.713–1.779)

GAL

Yes

46(20.0)

27

19

 

No

184(80.0)

64

120

1.692 (1.063–2.694)*

MI

3–5

104(45.2)

53

51

 

0–2

126(54.8)

38

88

1.756 (1.160–2.659)*

  1. *P < 0.05
  2. †Adjusted for age, gender, smoking status, alcohol exposure, and stage