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Table 1 Characteristics of study participants

From: Serum brain-derived neurotrophic factor levels and personality traits in patients with major depression

 

Patients with MDD

 

(n = 123)

 

Mean ± SD

Age (years old)

56.8 ± 14.1

Sex (F/M)

79/44

Education (years)

13.0 ± 2.6

BMI (%)

23.0 ± 3.5

Age of onset (years old)

49.9 ± 15.8

HAM-D total score

22.0 ± 9.8

Number of depressive episodes

2.0 ± 1.2

Duration of current episode (months)

11.9 ± 13.2

Daily dose of antidepressant (mg)a

129.5 ± 98.3

Novelty-Seeking (NS)

7.7 ± 2.8

Harm-Avoidance (HA)

13.9 ± 4.1

Reward-Dependence (RD)

9.2 ± 2.5

Persistence (P)

2.2 ± 1.6

Self-Directedness (SD)

14.6 ± 5.1

Cooperativeness (C)

16.6 ± 3.4

Self-Transcendence (ST)

3.9 ± 2.9

Serum BDNF level (pg/ml)

19283.9 ± 7952.6

  1. aAntidepressants were converted into equivalent doses of imipramine.
  2. MDD, major depressive disorder; SD, standard deviation; F, female; M, male; BMI, body mass index; HAM-D, Hamilton Rating Scale for Depression; BDNF, brain-derived neurotrophic factor.