Table 1 Demographic and clinical characteristics.

From: Validating a functional near-infrared spectroscopy diagnostic paradigm for Major Depressive Disorder

 

MDD (n = 105)

HC (n = 105)

p-value

Age (years)

36.2 ± 13

36.4 ± 13

0.915

Gender

  

0.574

Male

45 (42.9%)

40 (38.1%)

 

Female

60 (57.1%)

65 (61.9%)

 

Ethnicity

  

0.052

Chinese

86 (81.9%)

80 (76.2%)

 

Malay

10 (9.5%)

5 (4.8%)

 

Indian

7 (6.7%)

8 (7.6%)

 

Eurasian

0

3 (2.9%)

 

Others

2 (1.9%)

9 (8.6%)

 

Handedness †

  

0.235

Right

66 (88%)

89 (90.8%)

 

Left

8 (10.7%)

5 (5.1%)

 

Ambidextrous

1 (1.3%)

4 (4.1%)

 

Education (years)

14.8 ± 2.7

16.5 ± 1.9

≤0.001

Number of words generated

16.6 ± 6.6

20.2 ± 5.7

≤0.001

HAM-D

14.7 ± 7.6

2.4 ± 2.3

≤0.001

GAF

68.9 ± 12.5

93.4 ± 7.9

≤0.001

Family psychiatric history †

27 (26.5%)

17 (18.3%)

0.230

Age at onset (years)

30.8 ± 11.4

—

 

Duration of illness (years)

5.3 ± 6.5

—

 

Past admission to psychiatric ward

32 (30.5%)

—

 

Pharmacotherapy

68 (64.8%)

—

 

Fluoxetine equivalent dose (mg/day)

28.9 ± 17.6

—

 

Diazepam equivalent dose (mg/day)

6.2 ± 5

—

 

Chlorpromazine equivalent dose (mg/day)

192.9 ± 132.6

—

 
  1. Mean ± SD are shown and p-values ≤0.05 are in bold.
  2. †Complete demographic data was not obtained for all subjects (Known handedness in healthy controls, n = 98; in major depressive disorder, n = 75. Known family history of psychiatric illness in healthy controls, n = 93; in major depressive disorder, n = 102).