TABLE 1.
Selected characteristics of head and neck cancer cases and controls in the INHANCE consortium.
| Cases | Controls | |||
|---|---|---|---|---|
| n | % a | n | % a | |
| Total | 1639 | 2506 | ||
| Study | ||||
| Seattle | 392 | 23.9 | 608 | 24.3 |
| Los Angeles | 425 | 25.9 | 1033 | 41.2 |
| Houston | 822 | 50.2 | 865 | 34.5 |
| Age (years) | ||||
| <40 | 98 | 6.0 | 220 | 8.8 |
| 40–44 | 123 | 7.5 | 255 | 10.2 |
| 45–49 | 230 | 14.0 | 386 | 15.4 |
| 50–54 | 307 | 18.7 | 555 | 22.2 |
| 55–59 | 383 | 23.4 | 559 | 22.3 |
| 60–64 | 247 | 15.1 | 289 | 11.5 |
| 65–69 | 122 | 7.4 | 138 | 5.5 |
| 70–74 | 64 | 3.9 | 58 | 2.3 |
| ≥75 | 65 | 4.0 | 46 | 1.8 |
| Sex | ||||
| Female | 406 | 24.8 | 828 | 33.0 |
| Male | 1233 | 75.2 | 1678 | 67.0 |
| Race/ethnicity | ||||
| White, non‐Hispanic | 1310 | 79.9 | 1920 | 76.6 |
| Black, non‐Hispanic | 135 | 8.2 | 184 | 7.3 |
| Hispanic | 131 | 8.0 | 274 | 10.9 |
| Asian/Pacific Islanders, non‐Hispanic | 45 | 2.8 | 78 | 3.1 |
| Others | 18 | 1.1 | 50 | 2.0 |
| Education level | ||||
| Junior high school or less | 106 | 6.5 | 101 | 4.0 |
| Some high school | 283 | 17.3 | 247 | 9.9 |
| High school graduate | 325 | 19.8 | 402 | 16.0 |
| Technical school, some college | 512 | 31.2 | 835 | 33.3 |
| College graduate or more | 413 | 25.2 | 921 | 36.8 |
| Alcohol consumption drink‐years | ||||
| Never‐drinkers | 320 | 19.5 | 703 | 28.1 |
| >0–20 | 369 | 22.5 | 914 | 36.5 |
| >20–30 | 102 | 6.2 | 196 | 7.8 |
| >30–40 | 95 | 5.8 | 156 | 6.2 |
| >40–50 | 70 | 4.3 | 91 | 3.6 |
| >50–60 | 74 | 4.5 | 77 | 3.1 |
| >60 | 609 | 37.2 | 369 | 14.7 |
| Tobacco use pack‐years | ||||
| Never‐users | 354 | 21.6 | 1037 | 41.4 |
| >0–10 | 212 | 12.9 | 561 | 22.4 |
| >10–20 | 155 | 9.5 | 261 | 10.4 |
| >20–30 | 158 | 9.6 | 212 | 8.5 |
| >30–40 | 211 | 12.9 | 173 | 6.9 |
| >40–50 | 170 | 10.4 | 110 | 4.4 |
| >50 | 379 | 23.1 | 152 | 6.1 |
| Cannabis smoking | ||||
| Never | 1405 | 85.7 | 2114 | 84.4 |
| Ever | 234 | 14.3 | 392 | 15.6 |
a
Percentages may not add up to 1 due to rounding.