Table 2 Associations of the body roundness index with cognitive function.

From: Associations of the body roundness index with cognitive function in US older adults and the mediating role of depression: a cross-sectional study from the NHANES 2011–2014

	Crude model			Model 1^a			Model 2^b			Model 3^c
	β	95%CI	P	β	95%CI	P	β	95%CI	P	β	95%CI	P
CERAD
BRI (continuous)	−0.08	−0.26,0.09	0.3	−0.14	−0.32, 0.04	0.13	−0.06	−0.24, 0.12	0.5	−0.01	−0.22, 0.19	> 0.9
BRI (categorical)
Q1	ref	ref		ref	ref		ref	ref		ref	ref
Q2	−1.3	−2.2, −0.30	0.012	−0.89	−1.8, 0.00	0.049	−0.75	−1.6, 0.12	0.087	−0.68	−1.6, 0.19	0.11
Q3	−0.65	−1.6, 0.28	0.2	−0.40	−1.3, 0.47	0.3	−0.14	−0.98, 0.70	0.7	0.03	−0.90, 0.78	0.9
Q4	−0.59	−1.6, 0.43	0.2	−0.65	−1.7, 0.38	0.2	−0.21	−1.3, 0.86	0.7	0.12	−1.1, 1.3	0.8
P for trend			0.487			0.381			0.987			0.533
AFT
BRI (continuous)	−0.12	−0.32,0.08	0.2	−0.13	−0.31, 0.05	0.14	−0.05	−0.22, 0.11	0.5	0.02	−0.15, 0.19	0.8
BRI (categorical)
Q1	ref	ref		ref	ref		ref	ref		ref	ref
Q2	−0.83	−1.9, 0.25	0.13	−0.73	−1.6, 0.14	0.10	−0.56	−1.4, 0.26	0.2	−0.44	−1.3, 0.42	0.3
Q3	−0.86	−1.8, 0.13	0.086	−0.81	−1.8, 0.14	0.090	−0.51	−1.4, 0.39	0.2	−0.28	−1.3, 0.73	0.5
Q4	−0.78	−1.8, 0.25	0.13	−0.77	−1.7, 0.17	0.10	−0.34	−1.2, 0.52	0.4	0.12	−0.79, 1.0	0.8
P for trend			0.140			0.118			0.469			0.708
DSST
BRI (continuous)	−0.63	−1.2, −0.04	0.037	−0.66	−1.2, −0.17	0.011	−0.32	−0.69, 0.06	0.10	−0.04	−0.49, 0.41	0.9
BRI (categorical)
Q1	ref	ref		ref	ref		ref	ref		ref	ref
Q2	−1.0	−3.5, 1.5	0.4	0.10	−1.6, 1.8	> 0.9	0.68	−0.68, 2.0	0.3	0.99	−0.32, 2.3	0.12
Q3	−3.1	−5.7, −0.46	0.023	−2.1	−4.5, 0.17	0.068	−1.1	−3.0, 0.92	0.3	−0.15	−2.2, 1.9	0.9
Q4	−3.6	−6.8, −0.42	0.028	−3.2	−5.8, −0.65	0.016	−1.4	−3.3, 0.61	0.2	0.33	−1.9, 2.6	0.7
P for trend			0.013			0.008			0.075			0.966
Sum Score
BRI (continuous)	−0.83	−1.6, −0.03	0.042	−0.93	−1.6, −0.29	0.006	−0.43	−0.91, 0.05	0.077	−0.03	−0.53, 0.46	0.9
BRI (categorical)
Q1	ref	ref		ref	ref		ref	ref		ref	ref
Q2	−3.1	−7.3, 1.1	0.15	−1.5	−4.5, 1.4	0.3	−0.63	−3.1,1.9	0.6	−0.14	−2.6, 2.3	0.9
Q3	−4.6	−8.4, −0.80	0.019	−3.4	−6.7, −0.07	0.046	−1.7	−4.4, 1.0	0.2	−0.41	−3.2, 2.4	0.8
Q4	−5.0	−9.4, −0.49	0.031	−4.6	−8.2, −1.0	0.014	−1.9	−4.8, 0.99	0.2	0.57	−2.4, 3.5	0.7
P for trend			0.023			0.013			0.146			0.750

Notes:.
Crude model: unadjusted.
^aModel 1: Adjusted for age, gender, and ethnicity.
^bModel 2: Adjusted for age, gender, ethnicity, PIR, education, and marital status.
^cModel 3: Adjusted for age, gender, ethnicity, PIR, education, marital status, smoking status, alcohol status, hypertension, diabetes, and depression.
Abbreviations: BRI: body roundness index; CERAD: the Consortium to Establish a Registry for Alzheimer’s Disease Word List Learning Test; AFT: the animal fluency test; DSST: the digit symbol substitution test; Sum score: the sum of CERAD, AFT and DSST scores.

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Table 2 Associations of the body roundness index with cognitive function.

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