Table 2.

Detection rates (DRs) ^a and serum concentrations (SCs) ^b of HMGB1 in the study population.

	TD c	ASD d	Total
DR	30 (78.9%)	34 (81.0%) p = 0.99	64 (80.0%)
SC	0.99 ± 0.71, 0.71 (0.54, 1.25)	1.25 ± 0.84, 0.88 (0.70, 1.66) p = 0.039	1.13 ± 0.79, 0.80 (0.62, 1.44)

^a Detection rate (DR): the absolute number and proportion of individuals above the limit of detection (LOD). Comparisons for DRs and respective p-values were performed between the ASD and the TD groups (Fisher’s exact test); ^b SC: serum concentrations in nanograms per milliliter (ng/mL), presented as mean ± standard deviation, median (interquartile range). Comparisons for SCs and respective p-values were performed between the ASD and the TD groups (Mann-Whitney U test). Statistically significant associations are shown in bold (p < 0.05); ^c TD: Typical development; ^d ASD: Autism Spectrum Disorder.