Table 1

Characteristics of oral cancer cases and controls, Seattle-Puget Sound region, 1985–1995

CharacteristicCases (%) (n = 333)Controls (%) (n = 541)OR (95% CI)
Age (yr)
 <4514.717.7
 45–4912.615.9
 50–5418.015.7
 55–5919.518.1
 60–6535.132.5
Male71.271.5
Race
 White93.794.5
 Black3.62.6
 Other2.73.0
Less than college education43.828.5
Smokeless tobacco (any)a6.63.91.5 (0.7, 2.9)
Cigarette smoking (pack-yr)a
 None15.134.81.0
 <2014.830.91.1 (0.7, 1.8)
 20–3928.321.12.8 (1.8, 4.4)
 40+41.913.36.7 (4.1, 10.8)
Alcohol Use (drinks per week)a
 <113.826.11.0
 1–725.243.11.0 (0.6, 1.5)
 8–1416.814.61.7 (1.0, 2.9)
 15–4227.012.42.8 (1.7, 4.8)
 ≥4317.13.94.7 (2.4, 9.4)
Cigarette smoking and alcohol use combined
 Smoking (pack-yr)Alcohol (drinks/wk)
  Never<17.814.81.0
  Never1–145.716.60.8 (0.4, 1.5)
  Never≥151.53.31.2 (0.4, 3.6)
  1–20<12.77.60.8 (0.3, 1.8)
  1–201–148.120.70.9 (0.5, 1.6)
  1–20≥153.92.63.8 (1.5, 9.4)
  ≥20<13.03.71.8 (0.7, 4.5)
  ≥201–1428.320.33.3 (1.9, 5.7)
  ≥20≥1538.910.49.9 (5.5, 17.9)
  • a All ORs are adjusted for age (continuous years), sex, and race (white, nonwhite). ORs for cigarette smoking are additionally adjusted for alcohol use (continuous average drinks/week), ORs for alcohol use are additionally adjusted for cigarette smoking (continuous pack-years), and ORs for smokeless tobacco use are additionally adjusted for cigarette smoking (continuous pack-years) and alcohol use (continuous average drinks per week).