. Author manuscript; available in PMC: 2022 Oct 1.

Published in final edited form as: J Endod. 2021 Jul 16;47(10):1575–1582. doi: 10.1016/j.joen.2021.07.008

Table 2:

Agreement and disagreement differences in the detection of apical periodontitis/rarefying osteitis (data grouped by anatomical site)

Anatomical group	Diagnostic Agreement	Diagnostic Disagreement	Cohen’s kappa (95% Confidence Interval)	Chi-Square test
Maxilla	728	182	0.59 (0.54, 0.65)	χ² = 4.327
Mandible	612	195	0.52 (0.47, 0.58)	p = 0.038

Molar teeth	790	246	0.52 (0.47, 0.58)	χ² = 7.707
Premolar teeth	372	99	0.58 (0.51, 0.66)	p = 0.021
Incisor/Canine teeth	178	32	0.70 (0.60, 0.79)

Multi-rooted teeth⁺	894	271	0.53 (0.49, 0.59)	χ² = 3.601
Single rooted teeth	446	106	0.61 (0.55, 0.68)	p = 0.058

Mandibular molar teeth	442	151	0.51 (0.44, 0.57)
Maxillary molar teeth	348	95	0.55 (0.47, 0.63)
Maxillary premolar teeth	243	63	0.60 (0.51, 0.69)	χ² = 10.236
Maxillary incisor/canine teeth	137	24	0.47 (0.35, 0.60)	p = 0.069
Mandibular premolar teeth	129	36	0.55 (0.42, 0.68)
Mandibular incisor/canine teeth	41	8	0.66 (0.44, 0.87)

⁺

Multi-rooted teeth were all molar teeth and maxillary first premolars.