Table 1 Distribution of 768 cases of oral and pharyngeal cancer and 2078 controls according to sex, age, education, and other selected variables. Italy and Switzerland, 1997–2009
From: The role of a Mediterranean diet on the risk of oral and pharyngeal cancer
Cases | Controls | |||
|---|---|---|---|---|
Characteristic | N | % | N | % |
Center | ||||
Italy | 348 | 45.3 | 1001 | 48.2 |
Switzerland | 420 | 54.7 | 1077 | 51.8 |
Sex | ||||
Men | 593 | 77.2 | 1368 | 65.8 |
Women | 175 | 22.8 | 710 | 34.2 |
Age (years) | ||||
<50 | 120 | 15.6 | 483 | 23.2 |
50–<60 | 311 | 40.5 | 607 | 29.2 |
60–<70 | 238 | 31.0 | 645 | 31.0 |
⩾70 | 99 | 12.9 | 343 | 16.5 |
Education a (years) | ||||
<7 | 143 | 18.6 | 379 | 18.3 |
7–<12 | 278 | 36.2 | 641 | 31.0 |
⩾12 | 347 | 45.2 | 1048 | 50.7 |
Body mass index (kg m−2) | ||||
<20 | 98 | 12.8 | 107 | 5.2 |
20–<25 | 356 | 46.4 | 780 | 37.5 |
25–<30 | 248 | 32.3 | 944 | 45.4 |
⩾30 | 66 | 8.6 | 247 | 11.9 |
Smoking status a | ||||
Never smoker | 115 | 15.1 | 1031 | 49.7 |
Ex-smoker | 134 | 17.6 | 478 | 23.0 |
Current smoker | ||||
<15 cigarettes per day | 41 | 5.4 | 211 | 10.2 |
15–24 cigarettes per day | 181 | 23.7 | 288 | 13.9 |
⩾25 cigarettes per day | 292 | 38.3 | 67 | 3.2 |
Alcohol consumption (drinks per day) | ||||
<2 | 168 | 21.9 | 1464 | 70.5 |
2–<4 | 165 | 21.5 | 450 | 21.7 |
4–<8 | 205 | 26.7 | 141 | 6.8 |
⩾8 | 230 | 30.0 | 23 | 1.1 |
