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Table 2 Demographic and risk factors in patients and controls and their association with risk of OSCC

From: Association of tumor necrosis factor-alpha promoter variants with risk of HPV-associated oral squamous cell carcinoma

Variables

Patients (n = 325)

Controls (n = 335)*

 

No.

%

No.

%

Age (years)

    

  ≤ 40

31

9.5

27

8.1

  41 – 55

126

38.8

105

31.3

  56 – 70

119

36.7

154

46.0

  > 70

49

15.0

49

14.6

Sex

    

  Male

241

74.2

269

80.3

  Female

84

25.8

66

19.7

Tobacco smoking

    

  Ever

227

69.8

239

71.3

  Never

98

30.2

96

28.7

Alcohol drinking

    

  Ever

250

76.9

240

71.6

  Never

75

23.1

95

28.4

HPV16 serologya

    

  Negative

225

69.2

293

87.5

  Positive

100

30.8

42

12.5

  1. *The cases and controls were adequately frequency-matched.
  2. asignificantly different in HPV16 serological status between cases and controls.