Table 1.
Frequency Distribution of Selected Variables of the Controls and HNSCC Patients
| Variable | Controls (n=312) | Patients (n=312) | p value |
|---|---|---|---|
| Age (y) | |||
| 20-40 | 114 (36.54%) | 82 (26.28%) | |
| 41-60 | 115 (36.86%) | 158 (50.64%) | |
| >60 | 83 (26.60%) | 72 (23.08%) | p=0.002 |
| Mean age (year±SD) | 45.00±15.94 | 49.39±11.90 | |
| Sex | |||
| Male | 247 (79.17%) | 258 (82.69%) | |
| Female | 65 (20.83%) | 54 (17.31%) | p=0.262 |
| Smoking Status | |||
| Yes | 92 (29.49%) | 228 (73.08%) | |
| No | 220 (70.51%) | 84 (26.92%) | p=0.0001 |
| Chewing Status | |||
| Yes | 86(27.56%) | 143 (45.83%) | |
| No | 226 (72.44%) | 169 (54.17%) | p=0.0001 |
| Alcoholic Status | |||
| Yes | 110 (35.26%) | 83(26.60%) | |
| No | 202 (64.74%) | 229 (73.40%) | p=0.019 |
| Histopathology | |||
| SCC | - | 66 (21.15%) | |
| WDSCC | - | 55 (17.63%) | |
| MDSCC | - | 178 (57.05%) | |
| PDSCC | - | 13 (4.17%) | |
| Stage | |||
| I+II | - | 47 (15.06%) | |
| III+IV | - | 265 (84.94%) | |
| Tumor Size | |||
| T1+T2 | - | 70 (22.44%) | |
| T3+T4 | - | 242 (77.56%) | |
| Node | |||
| N0 | - | 127 (40.71%) | |
| N+ | - | 185 (59.29%) | |
| Site | |||
| Nasopharynx | - | 11 (3.53%) | |
| Larynx | - | 45 (14.42%) | |
| Oropharynx | - | 107 (34.29%) | |
| Oral Cavity | - | 149 (47.76%) | |
MDSCC, Moderately Differentiated Squamous Cell Carcinoma; WDSCC, Well Differentiated Squamous Cell Carcinoma; PDSCC, Poorly Differentiated Squamous Cell Carcinoma; SCC, Squamous Cell Carcinoma; Chi square test was performed to analyze differences between controls and patients.