Table 1 Demographics and Results.

From: The Relationship Between Cortical Inhibition and Electroconvulsive Therapy in the Treatment of Major Depressive Disorder

 

Total Sample

Responders

Non-responders

Comparing Response Groups

t

(p)

Demographics

(n.)

25

15

10

  

Sex

 Male

6

3

3

  

 Female

19

12

7

  

Age (range in years)

47.4 (19–72)

42.93 (29–68)

53.20 (29–72)

1.68

0.106

Clinical Information

HDRS-17

 Baseline (±sd)

24.28 (±3.86)

25.27 (±4.50)

22.80 (±2.04)

−1.857

0.078

 Post-treatment (±sd)

14.36 (±6.65)

9.67 (±2.77)

21.40 (±3.78)

8.977

<0.0001

 Change (±sd)

9.92 (±8.34)

15.60 (±4.75)

1.40 (±3.98)

−7.795

<0.0001

Age at Onset (range in years)

29.83 (11–62)

26.29 (13–62)

35.33 (11–60)

  

Recurrence

 Single Episode

1

0

1

  

 Recurrent

24

15

9

  

Severity

 mild

0

0

0

  

 moderate

11

6

5

  

 severe w/o psychotic f.

10

7

3

  

 unknown

4

2

2

  

Medications

 antidepressant

22

12

10

  

 mood stabilizer

0

0

0

  

 benzodiazepine

8

4

4

  

 antipsychotic

8

6

2

  

 stimulant

3

1

2

  

 no psychotropic medication

2

2

0

  

Psychiatric Comorbidities

 Dysthymic Disorder

2

0

2

  

 Axis II Diagnosis

1

1

0

  

 Anxiety Disorders

9

6

3

  

 Other

1

1

0

  

 None

13

8

5

  

Physical Comorbidities

 Endocrine

6

4

2

  

 Musculoskeletal/Pain

4

3

1

  

 Cardiovascular

2

0

2

  

 Other

6

4

2

  

 None

10

7

3

  

ECT Information

Number of treatments (range)

13.60 (8–29)

12.13 (8–21)

15.80 (9–29)

  

Seizure Threshold (mC) (±sd)

26.18 (±10.76)

22.40 (±10.30)

30.72 (±9.91)

  

Seizure Duration (seconds)

 Observed physical (±sd)

40.67 (±15.19)

44.29 (±15.73)

35.60 (±13.55)

 Observed EEG (±sd)

54.87 (±21.44)

56.21 (±19.18)

53.10 (±25.26)

Neurophysiology

RMT (%)

 Baseline (±sd)

48.25 (±10.36)

 Post-treatment (±sd)

45.84 (±7.79)

 Change (±sd)

−3.00 (±8.20)

Cortical Silent Period (ms)

 Baseline (±sd)

136.50 (±31.88)

126.12 (±24.26)

152.07 (±36.70)

2.136

0.044

 Post-treatment (±sd)

141.98 (±37.44)

142.33 (±39.39)

141.46 (±36.40)

−0.055

0.956

 Change (±sd)

5.48 (±41.33)

16.20 (±42.83)

−10.60 (±34.96)

−1.644

0.114

SICI (%)

 Baseline (±sd)

70.37 (±37.19)

64.80 (±39.91)

78.71 (±32.88)

0.913

0.371

 Post-treatment (±sd)

80.20 (±45.52)

76.50 (±48.02)

85.74 (±43.37)

0.489

0.629

 Change (±sd)

9.83 (±49.09)

11.70 (±44.04)

7.03 (±58.26)

−0.228

0.821

  1. Values of t-tests and significance (p) denote comparisons between response groups. Only the most common psychiatric and physical comorbidities in the study population are noted in this table.