Pollen-extract/Major allergen; n Major allergen positive; n Major allergen negative; n Agreement; n (%)
Grass/Phl p 1+5 1745 pos. grass extract 239 neg. grass extract 1646 12 99 227
1873 (94.4)
Birch/Bet v 1 1350 pos. birch extract 205 neg. birch extract 1271 8 79 197
1468 (94.4)
Ash/Ole e 1 157 pos. ash extract 24 neg. ash extract 127 1 30 23
150 (82.9)
Mugwort/Art v 1 199 pos. mugwort extract 63 neg. mugwort extract 107 2 92 61
168 (64.1)
Ragweed/Amb a 1 217 pos. ragweed extract 35 neg. ragweed extract 156 5 61 30
186 (73.8)