Mean scores on the dependent measures across time (pre-electroconvulsive therapy (ECT), post-final ECT and 1-month post-ECT) by anaesthetic group (treatment effects analysis).
(a) Group differences in Hamilton Rating Scale for Depression (HRSD) ratings across follow-up, (b) group differences in Montgomery–Åsberg Depression Rating Scale (MADRS) ratings across follow-up, (c) group differences in Cambridge Automated Neuropsychological Test Battery Spatial Recognition Memory task (CANTAB SRM) scores across follow-up. Error bars are the standard error of the mean.