Alzheimer's Research & Therapy

Table 2 Association of physical activity intensity with global cognition, episodic memory, and mental intactness at baseline

From: High-intensity physical activity is not associated with better cognition in the elder: evidence from the China Health and Retirement Longitudinal Study

	Model 1			Model 2
	β	95% CI	P value	β	95% CI	P value
Global cognition
Physical activity (ref: none)
Mild	0.575	0.197–0.953	0.003	0.421	0.073–0.768	0.018
Moderate	0.631	0.265–0.998	< 0.001	0.59	0.255–0.926	< 0.001
Vigorous	− 0.124	− 0.490–0.242	0.506	0.133	− 0.209–0.474	0.447
Episodic memory
Physical activity (ref: none)
Mild	0.268	0.091–0.445	0.003	0.204	0.033–0.375	0.020
Moderate	0.259	0.088–0.431	0.003	0.248	0.082–0.413	0.003
Vigorous	− 0.018	− 0.190–0.153	0.835	0.128	− 0.040–0.297	0.135
Mental intactness
Physical activity (ref: none)
Mild	0.307	0.023–0.592	0.034	0.217	− 0.050–0.483	0.111
Moderate	0.372	0.096–0.648	0.008	0.343	0.085–0.601	0.009
Vigorous	− 0.106	− 0.381–0.169	0.451	0.004	− 0.258–0.266	0.975

Model 1: adjusted for age (n = 4 039)
Model 2: adjusted for age, sex, BMI, education level, marital status, residence location, health conditions, smoking, current drinking, and CES-D score (n = 2 524)

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ISSN: 1758-9193

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