Table 1 Demographic and clinical data (N = 27)

Age (years)

33.4 ± 10.2

34.6 ± 10.4

34 ± 9.9

0.974

Ethnicity

1.00

 Chinese

8 (88.9%)

8 (88.9%)

8 (88.9%)

 Indian

1 (11.1%)

1 (11.1%)

1 (11.1%)

Education (years)

16 ± 1.5

16 ± 2.1

14 ± 2.1

0.059

Handedness ^a

0.258

 Right

9 (100%)

5 (71.4%)

8 (100%)

 Left

0

1 (14.3%)

0

 Ambidextrous

0

1 (14.3%)

0

Number of words ^a

16.8 ± 4.1

15.4 ± 4.3

16 ± 5

0.813

Family history of psychiatric illness ^a

2 (25%)

4 (50%)

4 (44.4%)

0.561

Age at illness onset (years)

–

25.3 ± 8.1

23.9 ± 9.3

0.729

Duration of illness (years)

–

9.2 ± 8.1

10.1 ± 6.6

0.802

Past admission into psychiatric ward

–

7 (77.8%)

8 (88.9%)

0.500

GAF score ^b

93.3 ± 8.7

71.1 ± 12.7

62.2 ± 9.7

≤0.001

HAM-D score ^{a, b}

2.9 ± 2.5

11.3 ± 6.3

16.1 ± 5.3

≤0.001

YMRS score ^a

–

2.1 ± 3.4

–

–

BPQ score

–

31 ± 22.7

57.7 ± 5.1

0.176

Pharmacotherapy

–

9 (100%)

9 (100%)

–

 Antidepressants

–

4 (44.4%)

9 (100%)

0.029

 Anxiolytics & sedatives

–

4 (44.4%)

2 (22.2%)

0.310

 Antipsychotics

–

3 (33.3%)

2 (22.2%)

0.500

 Mood stabilisers

–

6 (66.7%)

5 (55.6%)

0.500

 Fluoxetine eq. dose (mg/day)

–

44 ± 30.2

29.3 ± 17.3

0.282

 Diazepam eq. dose (mg/day)

–

12.1 ± 9.7

7.1 ± 4.1

0.540

 Chlorpromazine eq. dose (mg/day)

–

244 ± 139.3

303 ± 214.3

0.726