Fig. 6From: Prevalence and diagnostic ability of β-zone parapapillary atrophy in open-angle glaucoma: a systematic review and meta-analysisThe sensitivity and specificity of β-PPA as a single diagnostic biomarker. The sensitivity to distinguish true positive for glaucoma was 0.78 (95% CI 0.68 to 0.85); the specificity to distinguish true negative for glaucoma was 0.63 (95% CI 0.51 to 0.73)Back to article page