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Table 1 Demographics and clinical characteristics of patientsa

From: Microbiomic differences in tumor and paired-normal tissue in head and neck squamous cell carcinomas

Variable

Included (n = 121)

Excluded (n = 38)

p value

Age (years)

63 ± 11

62 ± 13

0.73

Male

74 (64)

25 (74)

0.31

Race

  

0.07

 White

71 (91)

19 (100)

 Black

7 (9)

0 (0)

Localization

  

0.32

 Oral cavity/Oropharynx

72 (65)

26 (74)

  Floor of mouth

5

2

  Tongue

42

11

  Tonsil

13

8

  Oral cavity NOS

12

5

 Hypopharynx/Larynx

38 (35)

9 (26)

  Hypopharynx

4

2

  Larynx

34

7

T-stage

  

0.59

 Low T-stage

44 (40)

15 (45)

  T0

4

2

  T1–T2

42

13

 High T-stage (T3–T4)

66 (60)

18 (55)

N-stage

  

0.58

 Node negative (N0)

56 (51)

15 (45)

 Node positive

54 (48)

18 (55)

  N1–N2

51

18

  N3

3

0

Overall stage

  

0.16

 I–II

24 (24)

4 (13)

 III–IV

78 (76)

28 (88)

Previous treatment

   

 Operation

21 (19)

4 (12)

0.37

 Chemotherapy

24 (21)

3 (9)

0.09

 Radiotherapy

30 (26)

8 (24)

0.78

Smoking history

  

0.08

 Current

18 (16)

1 (3)

 Past

68 (60)

24 (71)

 Never

29 (25)

9 (26)

Alcohol use

  

0.96

 Heavy

10 (9)

4 (12)

 Social

57 (50)

16 (47)

 History

10 (9)

3 (9)

 Never

37 (32)

11 (32)

  1. Values are presented as means ± standard deviations or number (percent)
  2. aData are missing for the following variables, indicated as “variable name: # missing in included group/# missing in excluded group”: Age: 7/5, Gender: 6/4, Localization: 11/3, Race: 43/19, T-stage 9/5, N-stage 11/5, Overall stage: 19/6, Prior operation: 8/5, Prior chemotherapy: 5/4, Prior radiation: 5/4, Smoking history: 6/4, Alcohol use: 7/4. Percentages are calculated from denominator of samples with known data
  3. NOS not otherwise specified