Table 1 Demographic variables and risk factors in the OSCC patients and the controls
Variable | Cases (n = 377) | Controls (n = 433) | P* | ||||||
|---|---|---|---|---|---|---|---|---|---|
OSCC (All cases) | SCCOP | SCCOC | |||||||
Age (years) | n | % | n | % | n | % | n | % | |
< 54 | 158 | 41.9 | 97 | 46.0 | 61 | 36.7 | 161 | 37.2 | .170 |
≥ 54 | 219 | 58.1 | 114 | 54.0 | 105 | 63.3 | 272 | 62.8 | |
Sex | |||||||||
Male | 280 | 74.3 | 173 | 82.0 | 107 | 64.5 | 310 | 71.6 | .393 |
Female | 97 | 25.7 | 38 | 18.0 | 59 | 35.5 | 123 | 28.4 | |
Ethnicity | |||||||||
Non-Hispanic White | 327 | 86.7 | 188 | 89.1 | 139 | 83.7 | 421 | 97.2 | < .001 |
Others | 50 | 13.3 | 23 | 10.9 | 27 | 16.3 | 12 | 2.80 | |
Smoking | |||||||||
Never | 115 | 30.5 | 72 | 34.1 | 43 | 25.9 | 146 | 33.7 | .033 |
Ever | 262 | 69.5 | 139 | 65.9 | 123 | 74.1 | 287 | 66.3 | |
Alcohol consumption | |||||||||
Never | 88 | 23.3 | 42 | 19.9 | 46 | 27.7 | 152 | 35.1 | .0003 |
Ever | 289 | 76.7 | 169 | 80.1 | 120 | 72.3 | 281 | 64.9 | |
HPV16 serology | |||||||||
Seronegative | 268 | 71.1 | 121 | 57.4 | 147 | 88.6 | 379 | 87.5 | < .001 |
Seropositive | 109 | 28.9 | 90 | 42.6 | 19 | 11.4 | 54 | 12.5 | |