Abstract
Increasing the effectiveness of psychosomatic rehabilitation by prolonging the treatment is a subject of controversial debate. The number of sessions over time defines the dosage in psychotherapy. While the dose-response model assumes an optimal therapy dose, the good-enough level model assumes acorrelation of the rate of change with the total sessions. Arandomized control group study was conducted to investigate the extent to which an adaptive therapy concept with atwo-week intensive phase and early intervention could increase rehabilitation success. A total of 494 rehabilitants between the ages of 21 and 64 (47% women) who completed aclassical or an integrative psychosomatic rehabilitation at the Rehazentrum Oberharz between 2020 and 2022 were analysed. Rehabilitation success was mapped by the Reliable Change Index of individual symptom reduction (depression severity or psychological and somatoform disorders) and as asocio-medical parameter (physician's assessment of potential work ability (WA) after twoweeks). Two-factorial ANOVAs and hierarchical binary logistic regressions were calculated, and sick leave before rehabilitation was statistically controlled. Dosage showed no effect on symptom reduction (p = 0.29) and potential WA after twoweeks (p = 0.90). However, when stratified by disease severity, there was amean effect of dosage (p = 0.05) and twice the probability of WA after twoweeks (odds 2.13; p = 0.01) for those with mild disease at the start of measure (p = 0.05). In the early stages of an affective disorder, early and intensified intervention can counteract the chronification of mental disorders.
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More From: Bundesgesundheitsblatt, Gesundheitsforschung, Gesundheitsschutz
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