Table 2. Postdissection Threshold and Mechanical Events Associated With Postoperative Nerve Outcome.

	Weak	Not Weak	Total	Probability, % (95% CI)
PPV, threshold >0.25 mA	44	20	64	69 (58-79)
NPV, threshold ≤0.25 mA	49	94	143	65 (61-70)
Total	93	114	207	NA
Sensitivity of positive likelihood ratio, 2.70	NA	NA	NA	47 (37-57)
Specificity of negative likelihood ratio, 0.64	NA	NA	NA	82 (74-88)
PPV, mechanical events >8	40	37	77	52 (43-61)
NPV, mechanical events ≤8	55	81	136	60 (54-64)
Total	95	118	213	NA
Sensitivity of positive likelihood ratio, 1.34	NA	NA	NA	42 (32-53)
Specificity of negative likelihood ratio, 0.84	NA	NA	NA	69 (59-77)

Abbreviations: NA, not applicable; NPV, negative predictive value; PPV, positive predictive value.