Table 2.

Number of positive skin tests per dilution.

Dilution	6 (1 : 15625)	5 (1 : 3125)	4 (1 : 625)	3 (1 : 125)	2 (1 : 25)	1 (1 : 5)	Totals
A (2010)	0	2	6	27	216	34	285
B (2015)	5	11	228	125	481	137	987∗∗

Numbers and percentages coincide as they are based on 100 cases.

Dilution 6 through 1 are 1 : 5 dilutions of the allergenic extract.

Totals: total number of positive mold tests in 100 tests (or 1800 individual mold tests).

A (2010): Group A, including tests performed in or before 2010.

B (2015): Group B, including tests performed in 2014 and 2015.

^∗∗ p < 0.0001.