highly significantp < 0.001
Furthermore, the treatment × treatment order interaction was highly significant ( χ 2 1 = 12.57, p < 0.001).
Furthermore, the treatment × treatment order interaction was highly significant ( χ 2 1 = 12.57, p < 0.001).
In addition, the treatment × age interaction was marginally significant ( χ 2 1 = 4.26, p = 0.039).