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Fig. 2 | BMC Geriatrics

Fig. 2

From: Bidirectional relationship between nocturnal subjective sleep duration and cognitive performance in Chinese over 45 years old: a national representative longitudinal study

Fig. 2

Random-intercepts cross-lagged panel model of night sleep duration and overall cognitive z score from wave 1 to wave 4 in the China Health and Retirement Longitudinal Study (n = 9404). NS = intraindividual centered night sleep duration, ns = interindividual night sleep duration, OC = intraindividual centered overall cognitive performance, oc = interindividual overall cognitive performance, RI_NS = random intercept of night sleep, RI_OC = random intercept of overall cognitive performance. Standardized estimates are presented. *P FDR < 0.05. Interindividualal association between night sleep duration and cognitive function is significant (β = 0.13). The autoregressive paths of night sleep duration and cognitive performance are significant at intraindividual levels as the solid lines in the figure, and the cross paths of night sleep duration and cognitive performance are significant at intraindividual levels as the solid lines in the figure

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