Table 3.

Diagnostic performance of S-LANSS and CNE compared to MRI

Diagnostic test	TP	FP	FN	TN	Sensitivity	Specificity	+LR	-LR
S-LANSS	42	25	14	21	0.75	0.6	1.87	2.4
Skin sensation	27	13	29	33	0.48	0.71	1.66	1.37
Motor power	35	16	21	30	0.63	0.65	1.8	1.76
Tendon reflex	29	6	27	40	0.52	0.87	4	1.8
LLNDTs	44	20	12	26	0.79	0.57	1.84	2.71

Key: TP True positive, FP False positive, FN False negative, TN True negative, +LR Positive likelihood ratio, −LR Negative likelihood ratio