Table 3

Allergy history in relation to risk for NHL

Allergy historyCases (n = 952)Controls (n = 1691)ORa (95% CI)
No70412151.0 reference
Yes2484761.0 (0.8–1.2)
 1 allergy1332710.9 (0.7–1.2)
 2 allergies601210.9 (0.6–1.2)
 ≥3 allergies55841.2 (0.9–1.8)
Plantsc1412581.0 (0.8–1.3)
Dust841660.9 (0.7–1.2)
Food40791.1 (0.7–1.6)
Animals37641.1 (0.7–1.7)
Medication621121.0 (0.7–1.4)
Insect bite or sting8131.1 (0.5–2.8)
Specific chemicalb1182.7 (1.1–7.0)
Class of compound5200.5 (0.2–1.2)
Tobacco smoke671.6 (0.5–4.8)
Fabrics7111.2 (0.4–3.1)
  • a ORs are adjusted for age, cancer registry, race/ethnicity, and education. All ORs are in reference to controls.

  • b Chemical allergies among cases include ammonia (n = 1), chromate (n = 1), diesel fumes (n = 1), kapok (n = 1), mercury (n = 1), pesticide (n = 1), sulfur (n = 3), and chemical not otherwise specified (n = 2); chemical allergies among controls include diesel fumes (n = 1), kapok (n = 1), pesticide (n = 2), sulfur (n = 1), textile chemical (n = 1), and chemical not otherwise specified (n = 2).

  • c Plant allergies include those to pollen, hay, grass, leaves, and molds.