Cases (n = 2161) | Controls (n = 3555) | p-value of chi 2 test | |||
---|---|---|---|---|---|
n | % | n | % | ||
Age at interview (years, quartiles) | 0.003 | ||||
Mean (SD) | 57.8 (8.6) | 58.5 (10.2) | |||
< 51 | 467 | 21.6 | 899 | 25.3 | |
51–60 | 767 | 35.5 | 812 | 22.8 | |
59–65 | 508 | 23.5 | 801 | 22.5 | |
≥66 | 419 | 19.4 | 1043 | 29.3 | |
Sex | < 0.0001 | ||||
Male | 1862 | 86.2 | 2780 | 78.2 | |
Female | 299 | 13.8 | 775 | 21.8 | |
Area of residence | < 0.0001 | ||||
Bas-Rhin | 232 | 10.7 | 469 | 13.2 | |
Calvados | 210 | 9.7 | 462 | 13.0 | |
Doubs, Territoire de Belfort | 47 | 2.2 | 143 | 4.0 | |
Hérault | 227 | 10.5 | 450 | 12.7 | |
Isère | 250 | 11.6 | 501 | 14.1 | |
Loire Atlantique | 359 | 16.6 | 404 | 11.4 | |
Manche | 238 | 11.0 | 312 | 8.8 | |
Haut-Rhin | 39 | 1.8 | 118 | 3.3 | |
Somme | 394 | 18.3 | 499 | 14.0 | |
Vendée | 165 | 7.6 | 197 | 5.5 | |
Socioeconomic status (the longest held job) | < 0.0001 | ||||
Managers | 134 | 6.2 | 618 | 17.4 | |
Farmers | 51 | 2.4 | 197 | 5.5 | |
Self-employed workers | 136 | 6.3 | 177 | 4.9 | |
Intermediate white-collar workers | 218 | 10.1 | 695 | 19.5 | |
Office and sales employees | 341 | 15.8 | 672 | 18.9 | |
Blue-collar workers | 1241 | 57.4 | 1178 | 33.1 | |
Tobacco smoking status | < 0.0001 | ||||
Never smokers | 110 | 5.1 | 1262 | 35.5 | |
Former smokers a | 589 | 27.3 | 1461 | 40.1 | |
Current smokers | 1452 | 67.2 | 820 | 23.1 | |
Tobacco-smoking (pack-years, quartiles) | < 0.0001 | ||||
Mean (SD) | 38.3 (25.2) | 13.2 (18.4) | |||
Never smokers | 110 | 5.1 | 1262 | 35.5 | |
< 7 | 94 | 4.3 | 581 | 16.6 | |
7–16 | 174 | 8.1 | 566 | 16.1 | |
17–29 | 376 | 17.4 | 535 | 15.2 | |
> 29 | 1361 | 62.9 | 566 | 16.1 | |
Alcohol drinking (glass-years, quartiles) | < 0.0001 | ||||
Mean (SD) | 213.1 (233.6) | 78.3 (120.1) | |||
Never drinkers | 103 | 4.8 | 306 | 8.6 | |
< 9 | 149 | 6.9 | 803 | 22.6 | |
9–46 | 174 | 8.1 | 806 | 22.7 | |
47–118 | 378 | 17.5 | 804 | 22.6 | |
> 118 | 1273 | 58.9 | 802 | 22.6 | |
Cancer subsitesb | |||||
Oral cavity | 444 | 20.5 | – | – | |
Oropharynx | 658 | 30.5 | – | – | |
Hypopharynx | 405 | 18.7 | – | – | |
Oral cavity/pharynx unspecified | 148 | 6.8 | – | – | |
Larynx | 506 | 23.5 | – | – |