Table 2.

Results from logistic regressiona

Negative response to:Adjusted odds ratiob (95% CI)P-value
2. Do you have, or have you ever had, hayfever?2.44 (0.99 to 6.00)0.050
8. Do your allergy symptoms vary when you go from place to place (for example, on holiday)?4.00 (1.67 to 9.57)0.002
3. Do any of your parents or siblings (brothers or sisters) have, or have they ever had, hayfever?3.19 (1.37 to 7.44)0.010
9. Is there a specific trigger that always sets off your allergy symptoms?3.09 (1.32 to 7.22)0.010
  • a Outcome is not atopy; that is, negative skin tests.

  • b All odds ratios are adjusted for responses to the other three questions.