Table 3. Summary of studies performing 20WBCT after antivenom.

First author, year	Reference clotting assay	Time of repeat 20WBCT	Number of 20WBCT	True positive	False negative	True negative	False positive	Sensitivity (Confidence interval)	Specificity (Confidence interval)
Shenoy, 2020	INR >1·4	6 h	37	5	7	21	4	0·42 (0·15–0·72)	0·84 (0·64–0·95)
DSilva, 2019	INR >1·4	12 h	59	2	1	45	11	0·67 (0·02–0·45)	0·80 (0·68–0·90)
Oliveira, 2019	fibrinogen <100 mg/dL	12 h	73	2	39	32	0	0·05 (0·01–0·17)	1·00 (0·89–1·00)
Sano-martins, 1994	fibrinogen <100 mg/dL	6 h	69	8	34	27	0	0·19 (0·09–0·34)	1·00 (0·87–1·00)