To save content items to your account,
please confirm that you agree to abide by our usage policies.
If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your account.
Find out more about saving content to .
To save content items to your Kindle, first ensure email@example.com
is added to your Approved Personal Document E-mail List under your Personal Document Settings
on the Manage Your Content and Devices page of your Amazon account. Then enter the ‘name’ part
of your Kindle email address below.
Find out more about saving to your Kindle.
Note you can select to save to either the @free.kindle.com or @kindle.com variations.
‘@free.kindle.com’ emails are free but can only be saved to your device when it is connected to wi-fi.
‘@kindle.com’ emails can be delivered even when you are not connected to wi-fi, but note that service fees apply.
The Food and Drug Administration (FDA) has offered guidance on using health related quality of life (HRQoL) measures to support labeling claims, and the definition of HRQoL has become more systematized. HRQoL measures look at patients' reports of their perceived health in either very general or very particular terms. Utility assessment is an increasingly active area of research in multiple sclerosis (MS). HRQoL data are used for three general purposes: to classify or group patients by levels of disease severity, predict the health of subjects at a future point in time, and as outcome variables. MS-specific HRQoL measures have been included as endpoints in many clinical studies, including some randomized controlled clinical trials. Selection of the most appropriate disease-specific measures by investigators should be based on available validity and reliability data for those measures and the specific questions that the researcher hopes to answer.