Table 1 Concordance and discordance between skin testing (PST ± ID) and RAST in all patients tested for D. farinae, cockroach mix, cat epithelium and dog epidermal.
From: Skin testing versus radioallergosorbent testing for indoor allergens
ST & RAST comparison | D. farinae n = 118 | Cockroach n = 60 | Cat epithelium n = 90 | Dog epidermal n = 90 |
|---|---|---|---|---|
Concordance Both + or - | 69/118 (58.5%) | 32/60 (53.3%) | 56/90 (62.2%) | 47/90 (52.2%) |
ST+ of RAST+ | 48/49 (98.0%) | 8/8 (100%) | 22/24 (91.7%) | 8/10 (80.0%) |
ST- of RAST+ | 1/49 (2.0%) | 0/8 (0%) | 2/24 (8.3%) | 2/10 (20.0%) |
ST+ of RAST- | 48/69 (69.6%) | 28/52 (53.8%) | 32/66 (48.5%) | 41/80 (51.3%) |
ST- of RAST- | 21/69 (30.4%) | 24/52 (46.2%) | 34/66 (51.5%) | 39/41 (48.7%) |
RAST+ of ST+ | 48/96 (50.0%) | 8/36 (22.2%) | 22/54 (40.7%) | 8/49 (16.3%) |
RAST- of ST+ | 48/96 (50.0%) | 28/36 (77.8%) | 32/54 (59.3%) | 41/49 (83.7%) |
RAST+ of ST- | 1/22 (4.5%) | 0/24 (0%) | 2/36 (5.6%) | 2/41 (4.9%) |
RAST- of ST- | 21/22 (95.5%) | 24/24 (100%) | 34/36 (94.4%) | 39/41 (95.1%) |