Table 2.

Risk of a pituitary tumor in relation to past diagnosis of allergic disease in a case-control study, United Kingdom, 2001 to 2005

FactorCases (n = 299)
Controls (n = 630)
OR (95% CI)*P
n%n%
Ever diagnosis
    Asthma
        No25886.354185.91.0
        Yes4113.78914.10.9 (0.6-1.5)0.78
    Hay fever
        No22575.343869.51.0
        Yes7424.819230.50.7 (0.5-1.0)0.06
    Eczema
        No25685.653384.61.0
        Yes4314.49715.41.0 (0.6-1.6)0.98
    Other allergy
        No22374.643068.31.0
        Yes7625.420031.80.8 (0.5-1.1)0.13
    Any of above
        No13946.526241.61.0
        Yes16053.536858.40.8 (0.6-1.1)0.21
    No of conditions
        110033.420532.50.9 (0.6-1.3)0.60
        23812.79014.30.8 (0.5-1.3)0.28
        ≥3227.47311.60.6 (0.4-1.1)0.13
Ptrend = 0.09
  • * ORs obtained from unconditional logistic regression model adjusted for sex, age at reference date, region, interview year, and Townsend deprivation score.

  • Seasonal or nonseasonal allergic rhinitis and conjunctivitis, food allergy, contact allergy, other types of allergy.