highly significantP = 9.99 × 10 –4
For schizophrenia, the statistical analysis revealed that 25 out of the top 30 gene pairs shared at least one Biological Process (BP) pathway, and the observed enrichment is highly significant ( P = 9.99 × 10 –4 , computed as ( w + 1)/(1,000 + 1) where no background iterations reached ≥ 25, thus w = 0) compared to random expectations.