
How to UseThe CNS-LS is a short 7-item, self-administered questionnaire, designed to be completed by the patient, that provides a quantitative measure of the perceived frequency of PBA episodes. The CNS-LS can help accurately diagnose PBA.
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How to ScoreAdd the values for each of the 7 items to get the total score. A CNS-LS score of 13 or higher may suggest PBA.
Sensitivity & Specificity
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Moore SR, Gresham LS, Bromberg MB, Kasarkis EJ, Smith RA. A self report measure of affective lability. J Neurol Neurosurg Psychiatry. 1997;63(1):89-93.