“…When the frequency changed during the observation period, the frequency was prorated. The classification of the group activities of the ADC established in a previous study (Savard, Lebel, Leduc, Béland, & Bergman, 2009; see summary in Table 1) was used to determine first, on a dichotomous scale, whether an individual participated in this type of activity and then to establish, on a continuous scale, the intensity of participation in this type of activity (percentage of ADC attendances in which the person participated in this type of activity).…”