Table 2—

Health utility scores and QALYs gained by treatment group and year

Utility scores
QALYs gained
LifestyleMetforminPlaceboLifestyle vs. placeboMetformin vs. placeboLifestyle vs. metformin
Year
 10.703 ± 0.1180.687 ± 0.1190.686 ± 0.1210.0170.0010.016
 20.695 ± 0.1220.680 ± 0.1230675 ± 0.1220.0200.0050.015
 30.692 ± 0.1250.673 ± 0.1170.657 ± 0.1250.0350.0160.019
Total0.0720.0220.050
  • Data are means ± SD.