QOLLTI-F is unique in that in measuring one person's QOL (the carer's) it includes their perception of the condition of another (the patient). This attests to the close relationship between the two. It is also unique in that its content is derived from a qualitative study asking carers what is important to their own QOL, rather than focusing on the changes or burdens related to caregiving. QOLLTI-F also has the advantage of being briefer than other carer QOL measures. It contains measures of seven different domains that are determinants of carer QOL, in addition to a summary score. All these measures are valid, reliable and responsive to change in QOL.

This study indicates that the improvement in HRQL over time is real rather than a result of reconceptualization or a recalibration. If response shift does occur with stroke it is likely to be mediated by the event itself and not the recovery process.