Table 3.

Weighted multivariable ordinal logistic regression analysis between the TC/RC ratio (log-transformed) and age-stratified quartiles of the CERAD total score

TC/RC	OR (95% CI)
	Model 1	Model 2	Model 3
Continuous	1.68(1.29–2.19)**	1.46(1.12–1.90)**	1.40(1.10–1.78)**
Categorical (quartiles)
≤6.08	Ref	Ref	Ref
> 6.08 to ≤8.75	1.12(0.80–1.56)	1.14(0.83–1.56)	1.09(0.79–1.51)
> 8.75 to ≤12.94	1.38(1.09–1.76)**	1.42(1.10–1.84)*	1.33(1.03–1.71)*
> 12.94	1.87(1.25–2.80)**	1.51(1.02–2.22)*	1.41(1.00–1.97)*
P for linear trend	0.002	0.020	0.028

Model 1 univariate analysis

Model 2 adjusted for age, gender, education level, and race

Model 3 further adjusted for BMI status, smoking status, and drinking status plus model 2

^*P < 0.05, **P < 0.01