Table 2.

Matched and other tumor-specific characteristics of African American cases and non-Hispanic white American controls with head and neck cancer

VariableAfrican Americans (n = 81), n (%)Non-Hispanic whites (n = 81), n (%)P
Site*,1.0
    Oral cavity30 (37.0)30 (37.0)
        Oral tongue/floor of mouth1617
        Gingivobuccal1413
    Oropharynx25 (30.9)25 (30.9)
        Tonsil1415
        Other oropharynx1110
    Larynx20 (24.7)20 (24.7)
        Supraglottic1213
        Glottic87
    Hypopharynx6 (7.4)6 (7.4)
Tumor stage*,1.0
    T19 (11.1)9 (11.1)
    T215 (18.5)15 (18.5)
    T323 (28.4)23 (28.4)
    T434 (42.0)34 (42.0)
Nodal stage*,§0.157
    N029 (35.8)29 (35.8)
    N112 (14.8)12 (14.8)
    N235 (43.2)40 (49.4)
    N35 (6.2)0 (0)
Overall stage1.0
    I7 (8.6)7 (8.6)
    II6 (7.4)6 (7.4)
    III12 (14.8)11 (13.6)
    IV56 (69.2)57 (70.4)
Grade0.616
    Well differentiated8 (11.0)5 (6.8)
    Moderately differentiated46 (63.0)51 (68.9)
    Poorly differentiated19 (26.0)18 (24.3)
Treatment*1.0
    Surgery alone11 (13.6)11 (13.6)
    Surgery + radiotherapy23 (28.4)23 (28.4)
    Surgery + chemoradiotherapy8 (9.9)8 (9.9)
    Radiotherapy alone11 (13.6)11 (13.6)
    Chemoradiotherapy28 (34.5)28 (34.5)
  • *Matched variables.

  • Site was matched by oral cavity, oropharynx, hypopharynx, or larynx.

  • Tumor stage was matched by T1-T2 or T3-T4.

  • §Nodal stage was matched by N0 or N1-3.

  • Grade was not recorded in 8 African Americans and 7 non-Hispanic whites.