Skip to main content

Table 4 Intra-observer reliability of the classification systems

From: Binary Tönnis classification: simplified modification demonstrates better inter- and intra-observer reliability as well as agreement in surgical management of hip pathology

  Observer 1 Observer 2 Observer 3 Observer 4 Observer 5
Traditional Tönnis Classification System κ = 0.883 κ = 0.578 κ = 0.780 κ = 0.884 κ = 0.907
Dichotomized Tönnis Classification System κ = 0.949 κ = 0.948 κ = 0.521 κ = 0.848 κ = 0.948
Binary Tönnis Classification System κ = 0.948 κ = 0.948 κ = 0.9 κ = 0.948 κ = 0.892