3.3. Serum S100B Concentrations
ADHD-C, ADHD-I, ADHD
Serum S100B levels were significantly reduced in the control group compared to ADHD patients at T0 [control group: 0.0938 (0.035) μg/L vs. ADHD group: 0.2204 (0.089) μg/L at T0 (When comparing serum S100B levels at different time points in the ADHD group, a significant increase was observed at T3 in relation to T0 [S100B mean values: 0.2204 (0.089) μg/L at T0 vs. 0.3339 (0.1447) at T3 (We additionally assessed differences in peripheral S100B levels between the patients classified into different ADHD presentations (ADHD-I and ADHD-C). Intergroup comparisons (ADHD-I vs. ADHD-C) across time revealed no significant differences in S100B levels. However, when analyzing the evolution of S100B values across time for the patients included in the same ADHD presentation (intragroup analysis), differences between T0–T3, T0–T6, and T3–T6 followed a similar pattern to the one observed for the whole group (