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Br J Ophthalmol 87:726-730 doi:10.1136/bjo.87.6.726
  • Original Article
    • Clinical science

Interobserver agreement on visual field progression in glaucoma: a comparison of methods

Table 4

Concordance between clinicians when using progressor

Concordance among clinicians Series classified as progressing Series classified as stable Total
Categories were collapsed into progressing (probably and definitely) and stable (probably and definitely). 100% concordance represents exact agreement among all five clinicians, 80% concordance represents exact agreement among four clinicians, and 60% concordance represents exact agreement among three clinicians.
100% 13 7 20 (74%)
80% 3 0 3 (11%)
60% 3 1 4 (15%)
Total 19 8 27 (100%)

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