False Negative Twenty‐Nine Montreal Cognitive Assessment Score in Moderately ADL‐Impaired UDS Patients: A Case Series Study of 23 Patients

MoCA had failed to detect cognitive impairment in patients with moderate ADL-impairment, even when laboratory and radiological examinations do not indicate typical AD pathology. This study indicates low specificity and negative predictive value (NPV) of MoCA and the necessity for additional screening tools to accurately assess cognitive function.