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Table 3 Correlation coefficient (r) between Skin Test (PST ± ID) and RAST scores in patients with respiratory allergies

From: Skin testing versus radioallergosorbent testing for indoor allergens

Allergen Patients tested Patients positive by both ST & RAST
  r p r p
D. farinae 0.54 <0.001 0.20 NS
Cockroach mix 0.42 <0.001 0.05 NS
Cat epithelium 0.48 <0.0001 0.04 NS
Dog epidermal 0.24 <0.05 0.37 NS
  1. r: strong 0.8+, moderate 0.4 to <0.8, weak < 0.4