In the originally published version of this manuscript, Figure 3 and 4 were inadvertently identical. The figures have since been corrected online and in print and are shown as follows:
Figure 3.
Symptoms of anxiety measured with the Hospital Anxiety and Depression Scale (HADS) at T0 (baseline), T1 (6-months follow-up) and T2 (12-months follow-up); intervention (Op Koers) and waitlist control group.
Figure 4.
Symptoms of depression measured with the Hospital Anxiety and Depression Scale (HADS) at T0 (baseline), T1 (6-months follow-up) and T2 (12-months follow-up); intervention (Op Koers) and waitlist control group.