Table 3. Paired Postdissection Threshold and Mechanical Events Associated With Postoperative Nerve Outcome.

	Weak	Not Weak	Total	Probability, % (95% CI)
PPV, threshold >0.25 mA and mechanical >8	17	5	22	77 (57-90)
NPV, threshold ≤0.25 mA or mechanical ≤8	72	107	179	58 (57-62)
Total	89	112	201	NA
Sensitivity of positive likelihood ratio, 4.28	NA	NA	NA	19 (12-29)
Specificity of negative likelihood ratio, 0.85	NA	NA	NA	96 (90-99)
PPV, threshold >0.25 mA or mechanical >8	63	50	113	56 (50-62)
NPV, threshold ≤0.25 mA and mechanical ≤8	26	59	85	69 (61-77)
Total	89	109	198	NA
Sensitivity of positive likelihood ratio, 1.54	NA	NA	NA	71 (60-81)
Specificity of negative likelihood ratio, 0.54	NA	NA	NA	54 (44-64)

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