In the original study of the scoring in 1996, patient population was not limited to oncology patients, although they were the predominant group (Lung, Prostate, Colon, NHL, Rectal, Esophageal, Melanoma, Cervical), but included patients with End stage Renal Disease and Diabetes Mellitus as well.

Subsequently, results have been published or reported using the PG-SGA© in the following patient populations: Cancer (lung, GI – general or gastric, esophageal, gastroesophageal, rectal colorectal), head and neck, gynecological, urological, acute leukemia, multiple myeloma, hematologic stem cell transplantation); Stroke; HIV; Parkinson’s Disease; Geriatrics; Chronic Kidney Disease; Hemodialysis; Radiotherapy or Chemoradiotherapy; General study; others.

The use of the same tool in different populations provides a consistent means of identifying patients with malnutrition and measuring outcomes of nutrition intervention, as patients move through the spectrum of health care delivery systems. In addition, results between the different populations can be compared with each other.