Table 3. Multivariate association between BDNF level (lower vs. higher)* and group (somatization disorder vs. normal control) of participants after adjusting age and gender.

^*BDNF was median splitted into lower (≤201.44 pg/mL) vs. higher BDNF (>201.44 pg/mL) groups. BDNF: brain-derived neurotrophic factor