The amount of a signal transducer and activator of transcription 1-alpha/beta (human) when measured in cerebrospinal fluid. The trait is level of signal transducer and activator of transcription 1-alpha/beta (human) in cerebrospinal fluid (OBA_2057816, an Ontology of Biological Attributes id). Also known as: cerebrospinal fluid signal transducer and activator of transcription 1-alpha/beta (human) amount.