The amount of a POU domain, class 2, transcription factor 1 (human) when measured in cerebrospinal fluid. The trait is level of POU domain, class 2, transcription factor 1 (human) in cerebrospinal fluid (Ontology of Biological Attributes term OBA_2057165). Also known as: cerebrospinal fluid POU domain, class 2, transcription factor 1 (human) amount.