Table 2.

Linear mixed-effects models estimating the longitudinal associations of the sleep index and physical activity index with MMSE scores.

Variables	Estimate	SE	p-value
Sleep index	−0.06229	0.02202	0.0047*
Physical activity index	0.06699	0.03343	0.0453*
Year (1)	−0.364	0.06652	<0.0001*
Year (2)	−0.1791	0.06542	0.0063*
Age	−0.08481	0.009933	<0.0001*
Sex	0.2284	0.108	0.0347*
Education	0.1467	0.0258	<0.0001*

After adjusting for age, sex, educational level, and time, the sleep index was inversely associated with MMSE scores (estimate, −0.06229; standard error, 0.02202; p = 0.0047), whereas the physical activity index was positively associated with MMSE scores (estimate, 0.06699; standard error, 0.03343; p = 0.0453). SE, Standard error. * p < 0.05.