Gender and age group modified association of dental health indicators with total occlusal force among Korean elders

Table 3 Comparison between association impact of dental health indicators on total occlusal force (n = 551)

Variable (range)	β	SE	Partial r	p value	R²
Model 1
Dental status (0–2)	− 116.44	22.54	− 0.22	< 0.001	0.10
Age	− 3.89	2.74	− 0.06	0.14
Sex	− 27.06	40.33	− 0.03	0.68
Periodontitis	− 97.81	34.08	− 0.12	0.06
Education	35.04	34.13	0.04	0.24
Smoking	45.21	41.15	0.05	0.34
Alcohol	21.54	30.54	0.07	0.43
Metabolic syndrome	25.12	28.56	0.06	0.37
Model 2
NT (0–32)	15.65	1.93	0.33	< 0.001	0.16
Age	− 3.42	2.64	− 0.06	0.20
Sex	− 43.51	39.03	− 0.05	0.27
Periodontitis	− 42.30	34.16	− 0.05	0.22
Education	8.87	33.28	0.01	0.79
Smoking	63.19	39.87	0.07	0.11
Alcohol	8.34	29.62	0.01	0.78
Metabolic syndrome	33.62	27.44	0.05	0.22
Model 3
NRT(0–32)	14.98	3.63	0.17	< 0.001	0.08
Age	− 5.16	2.75	− 0.08	0.06
Sex	− 36.34	40.69	− 0.04	0.37
Periodontitis	− 98.87	34.61	− 0.12	0.004
Education	38.59	34.42	0.05	0.26
Smoking	36.25	41.40	0.04	0.38
Alcohol	24.26	30.80	0.03	0.43
Metabolic syndrome	49.93	28.63	0.08	0.08
Model 4
NT-Post (0–20)	23.24	2.86	0.33	< 0.001	0.15
Age	− 3.09	2.65	− 0.05	0.24
Sex	− 32.46	38.99	− 0.04	0.41
Periodontitis	− 44.94	34.04	− 0.06	0.19
Education	19.06	33.11	0.03	0.57
Smoking	54.69	39.73	0.06	0.17
Alcohol	11.63	29.57	0.02	0.69
Metabolic syndrome	35.52	27.43	0.06	0.20
Model 5
NRT-Post (0–20)	18.36	4.42	0.176	< 0.001	0.05
Age	− 5.22	2.74	− 0.08	0.06
Sex	− 35.08	40.68	− 0.04	0.39
Periodontitis	− 98.16	34.63	− 0.12	0.005
Education	40.76	34.37	0.05	0.24
Smoking	31.22	41.28	0.03	0.45
Alcohol	25.48	30.77	0.04	0.41
Metabolic Syndrome	50.10	28.63	0.08	0.08

NT number of natural teeth, NRT number of natural and rehabilitated teeth, NT-Post number of natural posterior teeth, NRT-Post number of natural and rehabilitated posterior teeth, β regression coefficient; SE standard error for β
Bold denotes statistically significant
Partial r obtained from linear regression model for occlusal force adjusted for age, gender, smoking, alcohol, education, periodontitis and metabolic syndrome
Dental Status: 0 = Dentate; 1 = Partial denture; 2 = Complete denture
Model 1 for Dental status (0–2); Model 2 for NT (0–32); Model 3 for NRT (0–32); Model 4 for NT-Post (0–20); Model 5 for NRT-Post (0–20)

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