An integrated multi-study analysis of intra-subject variability in cerebrospinal fluid amyloid-β concentrations collected by lumbar puncture and indwelling lumbar catheter

Table 1 Lumbar puncture studies

Sponsor	Study	Subjects (n)	Type of subjects	Age (mean (SD))	CSF sample volume per draw (ml)
Lilly	L1	19	9 AD, 10 healthy	Not obtained	Not obtained
	L2	10	Healthy	61 (8)	16 ml per draw
	L3	34	AD	71.7 (6.4)	10 ml per draw
	L4	13	AD	69 (10)	25 ml per draw
	L5-A	7	Healthy	52 (6)	Not obtained

AD Alzheimer’s disease, CSF cerebrospinal fluid, Lilly Eli Lilly and Company (Indianapolis, IN, USA), SD standard deviation

ISSN: 1758-9193