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Table 5 AUCs for ALVAL-scores with all possible predictive values

From: Diagnostic utility of joint fluid metal ion measurement for histopathological findings in metal-on-metal hip replacements

   THA Hip resurfacing
ALVAL-score as predictive value   Joint fluid chrome AUC Joint fluid cobalt AUC Joint fluid chrome AUC Joint fluid cobalt AUC
≥4 Low .633 .649 .823 .867
≥5 Moderate .709a .620 .829 .821
≥6   .511 .593 .813 .781
≥7   .546 .479 .867a .852a
≥8   .575 .510 n/a n/a
≥9 High .597 .478 n/a n/a
  1. n/a assessment of AUC not possible due to inadequate number of controls and cases, see Table 1. a = significantly different from AUC = .5, see Figs. 1 and 2