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Table 1 Proportion of patients responding (CGI-I = 1 or 2) to ECT in relation to patient characteristics

From: Predictors of the short-term responder rate of Electroconvulsive therapy in depressive disorders - a population based study

Sex N = 936

Men (n = 399)

79.7%

χ2 = 0.08 p = 0.78

 

Women (n = 537)

80.4%

 

Age (years) N = 936

Age < 50 years (n = 388)

74.2%

χ2 = 14.5, p < 0.001

 

Age ≥ 50 years (n = 548)

84.3%

 

Diagnoses N = 936

Major depression, single episode (n = 149)

85.2%

χ2 = 9.1 df, =4 p = 0.060

 

Major depression, recurrent (n = 559)

81.0%

 
 

Bipolar I, depressed (n = 113)

77.9%

 
 

Bipolar II, depressed (n = 67)

73.1%

 
 

Schizoaffective disorder, depressed (n = 48)

68.8%

 

Severity N = 917

Mild/moderate (n = 290)

72.8%

χ2 = 21.7 df 2 p < 0.001

 

Severe, non-psychotic (n = 401)

81.5%

 
 

Severe, psychotic (n = 226)

88.9%

 

Co-morbid Anxiety diagnosis N = 936

With co-morbid anxiety diagnosis (n = 254)

78.0%

χ2 = 1.04, p = 0.31

 

Without co-morbid anxiety diagnosis (n = 682)

80.9%

 

Co-morbid Dependence diagnosis N = 936

With co-morbid dependence diagnosis (n = 102)

77.5%

χ2 = 0.52, p = 0.47

 

Without co-morbid dependence diagnosis (n = 834)

80.5%

 

Co-morbid Personality disorder N = 936

With personality disorder (n = 77)

66.2%

χ2 = 10.2, p = 0.001

 

Without known personality disorder (n = 859)

81.4%

 

Out/in patient N = 936

Outpatient (n = 181)

66.3%

χ2 = 27.0, p < 0.001

 

Inpatient (n = 755)

83.4%

 

Involuntary admission N = 936

Involuntary hospital admission (n = 144)

87.5%

χ2 = 5.81, p = 0.016

 

Voluntary hospital admission (n = 792)

78.8%