Cost-Utility Analysis
The outcome of the cost-utility analysis was the incremental cost-utility ratio (ICUR). The ICUR was calculated by ascertaining the mean difference in cost of providing the interventions compared with the control and dividing that by the mean difference in QALY. The difference in cost divided by the difference is utility was calculated for exercise vs balance and tone and cognitive and social enrichment vs balance and tone. A change of 0.03 QALYs, based on the EQ-5D-3L, is considered the MCID.The study used 5000 iterations of bootstrapping to estimate ICERs and ICURs with 95% CIs and plotted costs and effectiveness on a cost-effectiveness plane. The intervention’s cost-effectiveness probability was determined based on the quadrant placement.