Table 1.
Patient Clinical Characteristics
| No ND | ND | Total | P-value | ||||
|---|---|---|---|---|---|---|---|
| N | % | N | % | N | % | ||
| Total | 164 | 67.5 | 79 | 32.5 | 243 | ||
| Age | 0.323 | ||||||
| Mean, years (SD) | 56.3 (17.6) | 55.5 (13.3) | 56.0 (16.3) | 0.732 | |||
| <60 | 95 | 57.9 | 51 | 64.6 | 146 | 60.1 | |
| 60+ | 69 | 42.1 | 28 | 35.4 | 97 | 39.9 | |
| Race | 0.013 | ||||||
| White | 120 | 74.1 | 62 | 80.5 | 182 | 76.2 | |
| Black | 40 | 24.7 | 10 | 13 | 50 | 20.9 | |
| Other | 2 | 1.2 | 5 | 6.5 | 7 | 2.9 | |
| Sex | 0.840 | ||||||
| Male | 87 | 53 | 43 | 54.4 | 130 | 53.5 | |
| Female | 77 | 47 | 36 | 45.6 | 113 | 46.5 | |
| Primary Site | 0.170 | ||||||
| Oral Cavity | 95 | 57.9 | 53 | 67.1 | 148 | 60.9 | |
| Oropharynx | 69 | 42.1 | 26 | 32.9 | 95 | 39.1 | |
| Insurance Type | 0.524 | ||||||
| Private Insurance | 82 | 51.9 | 40 | 51.3 | 122 | 51.7 | |
| Not Insured | 4 | 2.5 | 5 | 6.4 | 9 | 3.8 | |
| Medicaid | 19 | 12.0 | 10 | 12.8 | 29 | 12.3 | |
| Medicare | 51 | 32.3 | 23 | 29.5 | 74 | 31.4 | |
| Other Government | 2 | 1.3 | 0 | 0 | 2 | 0.8 | |
| Facility Type | 0.014 | ||||||
| Community Cancer Program | 2 | 1.5 | 3 | 4.2 | 5 | 2.5 | |
| Comprehensive CCP | 36 | 27.3 | 11 | 15.5 | 47 | 23.2 | |
| Academic | 71 | 53.8 | 52 | 73.2 | 123 | 60.6 | |
| Integrated Cancer Program | 23 | 17.4 | 5 | 7 | 28 | 13.8 | |
| N Stage | 0.006 | ||||||
| N0 | 111 | 67.7 | 35 | 44.3 | 146 | 60.1 | |
| N1 | 13 | 7.9 | 13 | 16.5 | 26 | 10.7 | |
| N2 | 35 | 21.3 | 29 | 36.7 | 64 | 26.3 | |
| N3 | 2 | 1.2 | 0 | 0 | 2 | 0.8 | |
| Nx | 3 | 1.8 | 2 | 2.5 | 5 | 2.1 | |
| Grade | 0.010 | ||||||
| Well Differentiated | 39 | 30.5 | 11 | 15.5 | 50 | 25.1 | |
| Moderately Differentiated | 59 | 46.1 | 28 | 39.4 | 87 | 43.7 | |
| Poorly Differentiated | 19 | 14.8 | 21 | 29.6 | 40 | 20.1 | |
| Undifferentiated | 11 | 8.6 | 11 | 15.5 | 22 | 11.1 | |
| Pathologic N Stage | < 0.001 | ||||||
| p0 | 29 | 20.4 | 29 | 37.2 | 58 | 26.4 | |
| p1 | 5 | 3.5 | 4 | 5.1 | 9 | 4.1 | |
| p2 | 10 | 7.0 | 32 | 41.0 | 42 | 19.1 | |
| pX | 98 | 69.0 | 13 | 16.7 | 111 | 50.5 | |
| Treatment Type | < 0.001 | ||||||
| No Treatment | 18 | 14.0 | 1 | 1.3 | 19 | 9.3 | |
| Surgery Only | 48 | 37.2 | 22 | 29.3 | 70 | 34.3 | |
| Radiation Only | 17 | 13.2 | 0 | 0 | 17 | 8.3 | |
| Surgery with aRT | 33 | 25.6 | 40 | 53.3 | 73 | 35.8 | |
| Surgery with aCRT | 11 | 8.5 | 11 | 14.7 | 22 | 10.8 | |
| Chemotherapy Only | 2 | 1.6 | 1 | 1.3 | 3 | 1.5 | |
| Surgical Margins | 0.445 | ||||||
| Negative Margins | 96 | 79.2 | 62 | 83.8 | 138 | 81.2 | |
| Positive Margins | 20 | 20.8 | 12 | 16.2 | 32 | 18.8 | |
Abbreviations; SD: Standard Deviation; ND: Neck Dissection; aRT: Adjuvant Radiotherapy; aCRT: Adjuvant chemoradiotherapy; CCP: Community Cancer Program