Allergen origin

Patients number

 

Patients
No.

Percent

Odd ratio
[95%CI]

P value

 

Indoor

580

Negative
Positive

499
81

81.7
98.8

18.2
[2.5-132]

0.0000

Outdoor

443

Negative
Positive

436
7

71.4
87.8

2.9
[1.5-5.7]

0.001

Table 7: Allergen origin as a risk factor for systemic reaction development to subcutaneous immunotherapy.
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