Orofacial Pain during Mastication in People with Dementia: Reliability Testing of the Orofacial Pain Scale for Non-Verbal Individuals

Table 4

Intraobserver and interobserver reliability for the category sum scores as well as for the estimated pain intensity scale.

Category	Intraobserver; Observer 1		Intraobserver; Observer 2		Interobserver; Over assessments 1
	ICC	95% CI	ICC	95% CI	ICC	95% CI
Facial activities	0.76	0.70–0.81	0.49	0.38–0.58	0.41	0.25–0.54
Body movements	0.92	0.90–0.94	0.49	0.38–0.58	0.40	0.29–0.50
Vocalizations	N/A	N/A	N/A	N/A	N/A	N/A
Specific behavior	0.77	0.71–0.82	0.40	0.29–0.50	0.41	0.30–0.51
Pain intensity	0.81	0.76–0.85	0.58	0.49–0.66	0.47	0.36–0.56

ICC = Intraclass Correlation Coefficient.
CI = confidence interval.
All items from the category “vocalizations” were excluded from statistical analysis.