highly significantp < 0.0001
Statistical analysis revealed that the differences in prevalence between the two time periods were highly significant for all three allergens: thiuram mix ( χ 2 = 1382.26, p < 0.0001), mercapto mix ( χ 2 = 179.58, p < 0.0001), and mercaptobenzothiazole ( χ 2 = 317.21, p < 0.0001). 3.2.4.