Table 4. Unadjusted utilities by treatment group and time.

Treatment group	Mean	(s.d.)	Median	Min	Max	N
SIW
Baseline utility	0.749	0.165	0.775	0.257	1.000	160
6 months utility	0.795	0.152	0.826	0.346	1.000	159
12 months utility	0.817	0.174	0.875	0.224	1.000	155
SIF
Baseline utility	0.731	0.154	0.744	0.273	1.000	184
6 months utility	0.799	0.156	0.834	0.289	1.000	186
12 months utility	0.811	0.166	0.850	0.173	1.000	178
TAU
Baseline utility	0.758	0.158	0.773	0.338	1.000	168
6 months utility	0.784	0.152	0.816	0.346	1.000	171
12 months utility	0.804	0.163	0.834	0.349	1.000	160