Performance of artificial intelligence in predicting hepatocellular carcinoma recurrence after thermal ablation: A systematic review

Table 2 Quality assessment of the included studies using the GradePRO tool

Outcome	Number of studies	Study design	Risk of bias	Inconsistency	Indirectness	Imprecision	Certainty of evidence
AUC	8	Retro	Moderate	Low	Low	Moderate	Low
Accuracy	5	Retro	Moderate	High	Moderate	High	Very low
C-Index	2	Retro	Moderate	Moderate	Low	Moderate	Low
Sens/Spec	5	Retro	Moderate	Moderate	Low	Moderate	Low
PPV/NPV	4	Retro	Moderate-High	High	Moderate	High	Very low

AUC: Area under the curve; Sens: Sensitivity; Spec: Specificity; PPV: Positive predictive value; NPV: Negative predictive value; Retro: Retrospective.