Table 1. Characteristics of the included studies.

Author	Year	County	sample type	reference	N	TP	FP	FN	TN	Type of research	Sample condition	Homogenisation	sample pre-treatment	patient selection method	patient population
Wang S	2019	China	CSF	CRS	29	18	0	5	6	Retrospective	Frozen	Mechanical	With bead-beating	Convenience	Low
Zhou X	2019	China	CSF	CRS	49	7	1	9	32	Prospective	Fresh/Frozen	No	Without bead-beating	Consecutive	Low
Xing X	2020	China	CSF	CRS	213	12	6	32	163	Prospective	Frozen	No	With bead-beating	Convenience	Low
Yan L	2020	China	CSF	CRS	51	38	0	7	6	Retrospective	Fresh	Mechanical	With bead-beating	Convenience	Low

CSF, cerebrospinal fluid; CRS, composite reference standard; TP, true-positive; FP, false-positive; FN, false-negative; TN, true-negative.