QALYs
cognitive and social enrichment
REGRESSION
The mean (SD) adjusted incremental QALYs at the end of the 6-month intervention was 0.009 (0.008) QALYs for exercise vs balance and tone groups and 0.010 (0.009) QALYs for cognitive and social enrichment vs balance and tone groups. The mean (SD) adjusted incremental QALYs after follow-up was 0.002 (0.008) years for exercise vs balance and tone groups and 0.004 (0.010) QALYs for cognitive and social enrichment vs balance and tone groups. QALYs were adjusted using a regression model that considered baseline utility and group.