Individual items are rated on a 5-point Likert scale, where positively phrased items are scored from 1 (much less than I would like) to 5 (more than I would like), and negatively phrased items are scored from 1 (much more than expected) to 5 (less than expected). Subscale scores are obtained from the mean of the individual item scores in the respective domain. Subscale scores are then linearly rescaled to between 0 and 100. The mean of the subscale scores results in a total score ranging from 0 (least favourable quality of life) to 100 (most favourable quality of life).