Fig. 2

Two-dimensional histograms with circular two-dimensional dot-plots overlaid with a single histogram with a normal distribution. The aforementioned notation is shown in the right (or left) lower quadrant, and the positive rate (p) on the right side of the cutoff line is shown in square brackets in the right upper quadrant. If the center and edge of the circle are all to the left of the cutoff line, the expression is “-” (A), on the right side of the cutoff line “+” (I), significantly stronger than normal strength “(strong)+” (J), the center of the circle overlaps the cutoff line “(dim)+” (E). The center of the circle is on the negative (−) or positive (+) side of the cutoff line; thereafter, the degree of “dim” should be indicated with numerous inequality signs (1 to 3) depending on which zone the cutoff line is in (shown in the left upper quadrant from B, C, D, F, G and H)