Satisfaction levels of parents and cast technicians Among all children, the satisfaction scores of parents in the intervention group (46.6, SD 5.1) were higher than the control group (42.6, SD 6.9) with a mean difference of 4.0.Similarly, the satisfaction scores of CR technician in the intervention group (34.3, SD 3.6) were higher than those in the control group (31.7, SD 4.3) with a mean difference of 2.6 (table 4).