Shadman and colleagues used the Vitamins and Lifestyle (VITAL) study to evaluate data from 66,212 adults aged 50 to 76 years. Between 2000 and 2002, the cohort completed baseline questionnaires on cancer risk factors, medical conditions, medication use and diet.
When stratifying for sex, the increased risk for hematologic malignancies was only seen in women with a history of any airborne allergy (HR=1.47; 95% CI, 1.14-1.91) and those allergic to plants, grass and trees (HR=1.73; 95% CI, 1.32-2.25).
Researchers noted they did not control results for type of allergy medication study participants may have used.
“It’s tough to eliminate allergy treatment as a confounder, because just about everyone with allergies is on some medication,” Shadman said. “But none of the allergy medications are known to cause cancer.”
To read more, please click on the link above.