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The Italian Respiratory Distress Observation Scale achieved a scale-level CVI of 93%, an items-level CVI of greater than 86%, and a minimum content validity ratio value of 0.71. A weak positive correlation was found between the Respiratory Distress Observation Scale and the Dyspnea Visual Analog Scale scores (0.374; P less then .001). The Italian Respiratory Distress Observation Scale showed good reliability and validity for patients in palliative care. The Respiratory Distress Observation Scale measured respiratory distress in patients n