The PG-SGA was developed to be used by the patient independently. Obviously there may be some situations where this may be impossible currently, e.g., severe visual deficit, inability to read, or lack of availability of the relevant patient language. However, short of these impediments, it is always preferable for the patient to complete the PG-SGA, particularly in the context of their eating/intake, their symptoms (that they may not tell the family, nurse or physician but that do impact ability to each and absorb adequate macro- and micronutrients), and functional status.