Table 5.

Predictors of the Chewing Efficiency Analysis score in multivariate linear backward regression analysis.

Variable	B	t	p	95% CI Lower	95% CI Upper
Step 1
(Constant)	0.66
Age	0.00	-1.21	0.227	-0.01	0.00
Gender	0.01	0.39	0.695	-0.05	0.07
Cognition	0.00	1.21	0.228	0.00	0.01
Full prosthesis upper	-0.23	-5.26	0.000	-0.31	-0.14
Occluding pairs	0.02	3.06	0.003	0.01	0.03
Step 2
(Constant)	0.68
Age	0.00	-1.31	0.193	-0.01	0.00
Cognition	0.00	1.27	0.207	0.00	0.01
Full prosthesis upper	-0.23	-5.29	0.000	-0.31	-0.14
Occluding pairs	0.02	3.08	0.003	0.01	0.03
Step 3
(Constant)	0.89
Age	0.00	-1.87	0.064	-0.01	0.00
Full prosthesis upper	-0.23	-5.30	0.000	-0.31	-0.14
Occluding pairs	0.02	3.01	0.003	0.01	0.03

B, unstandardized B; CI, confidence interval; p, level of significance; R, variance; t, test value. R² = 0.53 and F = 28.64 (p < 0.000) for Step 1. ΔR² = 0.00 and F = 35.99 (p < 0.000) for Step 2. ΔR² = 0.01 and F = 47.23 (p < 0.000) for Step 3. N = 135.