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Table 3 Generalized linear model for predicting refractoriness to H1RA

From: Increased platelet activating factor levels in chronic spontaneous urticaria predicts refractoriness to antihistamine treatment: an observational study

Characteristics

Odds ratio (95% Cl)

p value

Age

1.004 (0.998–1.011)

0.209

Female

0.975 (0.827–1.148)

0.758

BMI

0.996 (0.973–1.019)

0.740

Urticaria duration

1.000 (0.998–1.001)

0.494

Total IgE

1.000 (1.000–1.000)

0.078

UAS7

1.008 (1.001–1.016)

0.020

ASST positivity

0.971 (0.825–1.142)

0.720

PAF (≥ 5000 pg/ml)

1.414 (1.217–1.642)

< 0.001

PAF-AH

1.000 (0.999–1.002)

0.582

  1. H1RA histamine receptor 1 antagonist, CI confidence interval, BMI body mass index, UAS7 urticaria activity score over 7 days, ASST autologous serum skin test, PAF platelet activating factor, PAF-AH platelet activating factor acetylhydrolase