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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