. 2021 Nov 1;15(11):e0009925. doi: 10.1371/journal.pntd.0009925

Table 4. Multi-HTLV intensities for indeterminate samples.

	Gold Standard Results	Multi-HTLV Intensity			Nb antigen with intensity > = 10	LR for confirmation (p)	Final Result
	Gold Standard Results	GP21-I/II CONF	P19-I/II CONF	GP46-I/II CONF	Nb antigen with intensity > = 10	LR for confirmation (p)	Final Result
A) Development	Negative	6,01	18,77	15,49	2	0,06	IND
A) Development	Negative	36,48	1,23	1,14	1	0,84	IND
B) Validation	Negative	42,14	3,24	1,41	1	0,95	IND
B) Validation	Negative	18,92	11,81	25,84	2	0,18	IND

(A) Results correspond to indeterminate samples with Multi-HTLV from the development set. The first sample in this group has two positive confirmatory antigens and LR probability (p) less than 0.5, while the second has only one positive GP21-I/II confirmatory antigen but LR probability higher than 0.5 (B) Results correspond to indeterminate samples with Multi-HTLV from the validation set. The first sample in this group has only a positive GP21-I/II confirmatory antigen and LR probability higher than 0.5, while the second has three positive confirmatory antigens but LR probability less than 0.5. CONF, confirmation; Nb, number; LR, Logistic Regression; IND, indeterminate result.