Fig. 2. Forest plot of the reliability of core needle biopsy (CNB) in detecting cancers in thyroid nodules with indeterminate fine-needle aspiration results.

The rate of cancers correctly diagnosed by CNB was 83% (95% confidence interval [CI], 76 to 89), with neither heterogeneity (I² =25%; 95% CI, 0 to 72.3) nor publication bias (Egger: bias, 0.24; 95% CI, -6.66 to 7.14, P=0.918).