Table 4.

Logistic regression predictors clinician and patient-rated remission after ECT

	MADRS a (n = 305)			BDI b (n = 280)
	Exp. (B)	CI Exp. (B)	p	Exp. (B)	CI Exp. (B)	p
Sex	0.55	0.32–0.95	0.031	0.65	0.37–1.14	0.130
Age	1.03	1.01–1.05	0.011	1.03	1.02–1.05	< 0.001
Psychiatric family history c , d	0.95	0.54–1.67	0.856
Age debut affective symptoms d	1.01	1.00–1.03	0.122
Previously received ECT	2.29	1.14–4.61	0.020	0.94	0.47–1.88	0.854
Duration current episode e	0.99	0.97–1.00	0.006	0.99	0.98–1.00	0.038
Bipolar disorder	0.56	0.27–1.13	0.103	0.67	0.32–1.43	0.301
Psychotic features	1.99	1.07–3.70	0.030	3.33	1.78–6.22	< 0.001
Pretreatment MADRS/BDI	1.01	0.97–1.06	0.596	0.97	0.94–0.99	0.010
Antidepressant f	0.89	0.47-1.66	0.704	0.83	0.44–1.56	0.564
Antipsychotic f	3.04	1.68-5.50	< 0.001	1.74	0.96–3.17	0.070
Benzodiazepine/z-hypnotic f	0.86	0.41-1.81	0.688	0.98	0.47–2.04	0.958
Anticonvulsant f	0.86	0.28-2.69	0.796	1.90	0.61–5.90	0.271
Lithium f	2.83	0.91-8.83	0.073	1.39	0.36–5.37	0.635

Abbreviations: BDI, Beck Depression Inventory; ECT, electroconvulsive therapy; MADRS, Montgomery-Åsberg Depression Rating Scale.

^aRemission = MADRS ≤10. Model statistically significant, χ ² (14, n = 305) = 87.81, p < 0.001.

^bRemission = BDI ≤ 9. Model statistically significant, χ ² (12, n = 280) = 63.37, p < 0.001.

^cHistory of first- or second-degree relatives suffering from severe depression, bipolar disorder, or schizophrenia.

^dPredictor not included in the BDI regression analysis.

^eDuration in weeks.

^fAdministered on a regular basis.