Alzheimer's Research & Therapy

Table 3 The effect of physical activity intensity on the long-term cognitive performance during follow-up

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	0.545	0.178–0.912	0.004	0.556	0.119–0.993	0.013
Moderate	0.869	0.514–1.224	< 0.001	0.744	0.317–1.171	0.001
Vigorous	0.200	− 0.153–0.553	0.267	0.24	− 0.187–0.667	0.272
Episodic memory
Physical activity (ref: none)
Mild	0.253	0.065–0.441	0.008	0.23	0.005–0.457	0.048
Moderate	0.376	0.194–0.558	< 0.001	0.316	0.093–0.539	0.005
Vigorous	0.141	− 0.039–0.321	0.128	0.11	− 0.113–0.333	0.336
Mental intactness
Physical activity (ref: none)
Mild	0.292	0.029–0.555	0.029	0.325	0.007–0.643	0.045
Moderate	0.493	0.238–0.748	< 0.001	0.429	0.117–0.741	0.007
Vigorous	0.059	− 0.194–0.312	0.646	0.13	− 0.182–0.442	0.413

Model 1: the main effect of PA intensity and visit time plus the interaction were fitted (n = 4 039)
Model 2: model 1 and 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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