Table 1.
Baseline Characteristics of Stricture and Nonstricture Groups
| Characteristic | Stricture Group (n = 49) | Nonstricture Group (n = 214) | P Value |
|---|---|---|---|
| Age, mean, y | 60 | 59 | |
| Gender | |||
| Male | 78 (38) | 82 (176) | .42 |
| Female | 22 (11) | 18 (38) | |
| Initial treatment | |||
| Radiation | 31 (15) | 29 (61) | .80 |
| Chemo/radiation | 22 (11) | 27 (58) | |
| Surgery | 47 (23) | 44 (95) | |
| Adjuvant therapy | |||
| Radiation | 18 (9) | 22 (47) | .39 |
| Chemo/radiation | 14 (7) | 10 (22) | |
| Initial tumor site | |||
| Oropharynx | 0 | 4 (8) | .40 |
| Hypopharynx | 27 (13) | 16 (34) | |
| Larynx | |||
| Supraglottic | 27 (13) | 29 (61) | |
| Glottic | 43 (21) | 49 (105) | |
| Subglottic | 2 (1) | 1 (2) | |
| Other | 2 (1) | 2 (4) | |
| T classification | |||
| 1 | 2 (1) | 2 (5) | .59 |
| 2 | 4 (2) | 11 (23) | |
| 3 | 37 (18) | 34 (73) | |
| 4 | 51 (25) | 49 (105) | |
| TMN stage | |||
| I | 0 | 2 (4) | .24 |
| II | 2 (1) | 7 (15) | |
| III | 22 (11) | 19 (41) | |
| IV | 71 (35) | 68 (145) | |
| Regional metastasis | |||
| No positive nodes | 61 (30) | 61 (131) | 1.00 |
| Positive nodes | 39 (19) | 39 (83) | |
| Distant metastasis | |||
| No metastasis | 84 (41) | 85 (182) | .82 |
| Positive metastasis | 16 (8) | 15 (32) | |
| Follow-up, mo, median (mean) | 18 (26) | 9 (17) | |
| Tobacco history | |||
| No | 6 (3) | 5 (11) | .73 |
| Yes | 86 (42) | 86 (183) | |
| Unknown | 8 (4) | 10 (21) | |
| Ethanol history | |||
| None | 29 (14) | 32 (69) | .04 |
| Light | 10 (5) | 11 (24) | |
| Moderate | 20 (10) | 11 (24) | |
| Heavy | 27 (13) | 19 (41) | |
| Unknown | 14 (7) | 27 (57) | |
Values presented as No. (%) unless otherwise specified. P <.05 was considered statistically significant (bold) by Fisher exact test or χ2 test.