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Table 5 Correlation between familiarity with the 2018 classification and participant performance on each item (Polychoric correlation coefficient)

From: Discrepancies in periodontitis classification among dental practitioners with different educational backgrounds

 

Periodontal cohort

(n1 = 31)

Nonperiodontal cohort

(n2 = 33)

Overall

(N  = 64)

Case 1, Stage

0.38

− 0.60

− 0.08

Case 1, Grade

0.17

− 0.49

0.16

Case 1, Risk factor

0.86

− 0.33

0.06

Case 2, Stage

0.44

− 0.55

− 0.06

Case 2, Grade

0.02

0.25

0.21

Case 2, Risk factor

0.41

0.44

0.32

Case 3, Stage

0.15

0.34

0.52

Case 3, Grade

0.11

0.06

0.12

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BMC Oral Health

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