Fuzzy rule. The fuzzy rule visualizes the risk combination identified by FNN analysis. The numbers of case subjects and healthy control subjects are shown in the upper line of each cell of the matrix, and the weights required to yield a case of MetS are shown in the lower line of each cell of the matrix. In both studies, most case subjects were classified as showing high levels of γ-GTP and high WBC counts, giving a high weight of 1.07 or 1.08, which means a significant factor for a case of MetS. (A): Original study. (B): Replication study.