Ravindranath S, Ho KM, Rao S, et al. - This research intended to confirm the Geriatric Trauma Outcome Score (GTOS) and GTOS II models. Researchers compared the GTOS scores with two ICU prognostic scores – the Acute Physiology and Chronic Health Evaluation III and Australian and New Zealand Risk of Death for the nested-cohort requiring intensive care. They enrolled all elderly trauma individuals who admitted to the State Trauma Unit between 2009 and 2019. They evaluated the discrimination ability and calibration of the GTOS and GTOS II scores by the area under the receiver-operating-characteristic curve and a calibration plot, respectively. During the study period, 15,034 (26.2%) out of the 57,473 trauma admissions, were ≥ 65 years-old. The results exhibited that in the elderly trauma patients, the GTOS scores had a good ability to discriminate between survivors and non-survivors, but GTOS II scores were no better than age alone in predicting unfavorable discharge. It was shown that both GTOS and GTOS II scores were not well-calibrated when the prognosticated risks of adverse outcomes were high.