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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