Consistency of supplied food and dentition status of the elderly in residential care homes

BMC Oral Health

Table 2 Logistic regression analysis of supplied food consistency by care levels, number of remaining teeth, and number of tooth contact pairs in premolar and molar regions

			Model 1		Model 2
	Crude odds ratio (95% CI)	P	Adjusted odds ratio (95% CI)	P	Adjusted odds ratio (95% CI)	P
Care level	1.909 (1.589–2.294)	< 0.001	1.908 (1.586–2.294)	< 0.001	1.865 (1.546–2.250)	< 0.001
Number of remaining teeth	1.026 (0.998–1.055)	0.070	1.025 (0.993–1.057)	0.127
Number of tooth contact pairs in premolar and molar regions
Natural teeth/natural teeth	1.323 (1.110–1.577)	0.002			1.263 (1.043–1.531)	0.017
Natural teeth/dentures	1.259 (1.089–1.455)	0.002			1.167 (0.991–1.374)	0.063
Dentures/dentures	1.139 (1.039–1.249)	0.006			1.101 (0.993–1.221)	0.068

As shown in Fig. 1, are levels were strong confounders for supplied food consistency when considering that mastication is a major function of food consistency and that teeth are a major functional device for mastication. Supplied food consistencies were dichotomized as ordinary or processed food. By simple logistic regression analysis, tooth contact pairs in the premolar and molar regions were more important than the number of remaining teeth. When adjusted by care level, the number of remaining teeth was not statistically significant (Model 1). For the tooth contact pairs in the premolar and moral regions, only natural teeth/natural teeth contact was statistically significant (Model 2). The p-values of natural teeth/dentures and dentures/dentures contact were not statistically significant. However, p-values of these contact style were close to 0.05

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