Research Article
Predictors of Time to Relapse/Recurrence after Electroconvulsive Therapy in Patients with Major Depressive Disorder: A Population-Based Cohort Study
Table 2
Univariate Cox regression analyses of patient risk factors for psychiatric hospitalisation or suicide during followup.
| | | Hazard ratio (HR) | 95% Confidence interval (CI) | |
| | Sex | Women () versus men () | 1.15 | 0.86–1.53 | 0.35 |
| | Age (years) | | 1.00 | 0.99–1.00 | 0.28 |
| | Diagnoses | Major depression, recurrent () versus major depression, single episode () | 1.26 | 0.88–1.79 | 0.21 |
| | Severity | Mild/moderate () versus severe, psychotic () | 1.01 | 0.67–1.52 | 0.97 | | Severe, nonpsychotic () versus severe, psychotic () | 1.12 | 0.76–1.66 | 0.57 |
| | Comorbid axis 1 diagnosis | With comorbid anxiety disorder () versus without comorbid anxiety diagnosis () | 1.12 | 0.83–1.52 | 0.47 | | With substance dependence () versus without substance dependence () | 1.90 | 1.28–2.82 | 0.001 |
| | Comorbid personality disorder | With personality disorder () versus without known personality disorder () | 1.41 | 0.88–2.26 | 0.16 |
| | CGI | Much improved () versus very much improved () | 1.23 | 0.87–1.75 | 0.25 | | Minimally improved () versus very much improved () | 0.99 | 0.59–1.65 | 0.96 | | Not improved () versus very much improved () | 1.54 | 0.86–2.75 | 0.15 |
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