All patients were assessed using the following scales: the Chapman Revised Physical Anhedonia Scale [RPAS] (9), the Positive and Negative Syndrome Scale (PANSS) [10 (link),11 ], the Rating Scale for Extrapyramidal Side-Effects (EPSE) [12 ], the Barnes Akathisia Rating Scale (BARS) [13 (link)] and the Abnormal Involuntary Movement Scale (AIMS) [14 ,15 ]. The severity of depression was estimated using the depression cluster score of the PANSS (items G1+G2+G3+G6) [16 (link),17 ].
Means and standard deviations of the main variables are shown in table 1.
Subjects were assessed during the first week of their hospitalisation by three independent psychiatrists-raters. The first rater assessed the patients using the RPAS and the AIMS, the second using the PANSS and the EPSE and the third using the BARS. Information from the patient's history, concerning social-demographic and clinical parameters was recorded in a pre-coded interview form. The antipsychotic agents dosage was estimated in chlorpromazine equivalents [18 ,19 (link)].
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