Table 2.

Statistics of area under curve (AUC) among PACAP, IL-1β, and MMP-3 (K-L Grade 2 vs Grade 3).

	AUC	SE	95% CI	P Value
PACAP	0.642	0.066	0.513–0.771	0.041
IL-1β	0.579	0.069	0.442–0.715	0.259
MMP-3	0.609	0.068	0.475–0.743	0.118

SE: standard error; 95% CI: 95% confidence interval.