Skip to main content
. Author manuscript; available in PMC: 2014 Sep 1.
Published in final edited form as: Oral Oncol. 2013 Jul 25;49(9):911–917. doi: 10.1016/j.oraloncology.2013.07.001

Table 3.

Distribution of overall comorbid scores by patient characteristics and tumor site

Characteristic None Mild Moderate Severe P valuea
Tumor Site
  Oral Cavity 26 (30.2%) 31 (36.1%) 23 (26.7%) 6 (7%)
  Oropharynx 18 (17.5%) 53 (51.5%) 24 (23.3%) 8 (7.8%) P = .110
  Larynx 9 (9.8%) 37 (40.2%) 34 (37%) 12 (13%) P = .005
Smoking
  All Sites
    Never 18 (40.9%) 14 (31.8%) 11 (25%) 1 (2.3%)
    Past 17 (13.1%) 67 (51.5%) 38 (29.2%) 8 (6.2%) P = .001
    Current 19 (16.8%) 44 (38.9%) 32 (28.3%) 18(15.9%) P = .001
  Larynx
    Never 1 (33.3%) 1 (33.3%) 1 (33.3%) 0 (0%)
    Past 2 (4.2%) 23 (47.9%) 18 (37.5%) 5 (10.4%) P = .209
    Current 6 (14.6%) 13 (31.7%) 15 (36.6%) 7 (17.1%) P = .768
  Oropharynx
    Never 7 (41.2%) 7 (41.2%) 3 (17.7%) 0 (0%)
    Past 8 (18.6%) 23 (53.5%) 10 (23.3%) 2 (4.7%) P = .282
    Current 3 (7%) 23 (53.5%) 11 (25.6%) 6 (14%) P = .009
  Oral Cavity
    Never 10 (41.7%) 6 (25%) 7 (29.2%) 1 (4.2%)
    Past 6 (16.7%) 19 (52.8%) 10 (27.8%) 1 (2.8%) P = .105
    Current 9 (36%) 6 (24%) 6 (24%) 4 (16%) P = .591
Age (years)
  All Sites
    <60 36 (29%) 46 (37.1%) 30 (24.2%) 12 (9.7%)
    60+ 19 (11.6%) 79 (48.2%) 51 (31.1%) 15 (9.2%) P = .002
  Larynx
    <60 6 (15.4%) 14 (35.9%) 13 (33.3%) 6 (15.4%)
    60+ 3 (5.7%) 23 (43.4%) 21 (39.6%) 6 (11.3%) P = .222
  Oropharynx
    <60 14 (29.8%) 20 (42.6%) 10 (21.3%) 3 (6.4%)
    60+ 4 (7.1%) 33 (58.9%) 14 (25.0%) 5 (8.9%) P = .027
  Oral Cavity
    <60 15 (41.7%) 12 (33.3%) 7 (19.4%) 2 (5.6%)
    60+ 11 (22.0%) 19 (38.0%) 16 (32.0%) 4 (8.0%) P = .239
HPV Status
  All Sites
    HPV16 − 19 (15.7%) 51 (42.2%) 39 (32.2%) 12 (9.9%)
    HPV16 + 8 (26.7%) 15 (50.0%) 6 (20.0%) 1 (3.3%) P = .251
  Larynx
    HPV16 − 4 (9.5%) 15 (35.7%) 19 (45.2%) 4 (9.5%)
    HPV16 + 1 (50.0%) 0 (0.0%) 1 (50.0%) 0 (0.0%) P = .371
  Oropharynx
    HPV16 − 2 (6.5%) 18 (58.1%) 7 (22.6%) 4 (12.9%)
    HPV16 + 7 (28.0%) 12 (48.0%) 5 (20.0%) 1 (4.0%) P = .159
  Oral Cavity
    HPV16 − 13 (27.1%) 18 (37.5%) 13 (27.1%) 4 (8.3%)
    HPV16 + 0 (0.0%) 2 (100.0%) 0 (0.0%) 0 (0.0%) P = .576
a

P value by chi-square or Fisher’s exact test comparing comorbid scores between rows using the first row as the reference group. Row percentages shown.