NPPB and obstructive sleep apnea syndrome: As shown in Table 2, after Benjamini-Hochberg correction significant group (OSA, mild/non-OSA) × NT-pro-BNP (<157.0 vs. ≥157.0 ng/L) interactions were found for the DSST raw score (F(3,324) = 3.58, p = 0.014).