Table 5.

Relationship between change in different domains of cognition and change in walking speed over the follow-up period

Predictor	Modela	Regression coefficient for change in walking speed
		Coefficient	SE	p value
Change in cognition, per SD increment
Executive function	1	0.058	0.011	<0.01
Memory	1	0.046	0.011	<0.01
Processing speed	1	0.047	0.011	<0.01
Executive function	2	0.036	0.011	<0.01
Memory	2	0.023	0.011	0.040
Processing speed	2	0.029	0.011	0.011
Executive function	3	0.036	0.012	<0.01
Memory	3	0.011	0.012	0.378
Processing speed	3	0.025	0.012	0.041

^aModels: 1—adjusted for age, age-squared and sex; 2—further adjusted for education, and household wealth at baseline; 3—further adjusted for self-reported doctor diagnoses of heart disease, stroke, diabetes, hypertension, osteoporosis, arthritis or rheumatism, chronic lung disease, asthma or cancer, physical activity, smoking, and depressive symptoms at baseline, plus BMI, waist-to-hip ratio, grip strength and blood pressure at wave 2