Table 2.

Annual Rate of Change in Motor Measures in Older African American Adults^*

		Motor Measures
	Term	Model 1 Global Motor Score	Model 2 Gait	Model 3 Strength	Model 4 Dexterity
1	Annual Change in motor measure	−0.026 (0.001,<0.001)	−0.024 (0.002,<0.001)	−0.025 (0.002,<0.001)	−0.010 (0.001,<0.001)
2	Age	−0.013 (0.001,<0.001)	−0.010 (0.001,<0.001)	−0.015 (0.002,<0.001)	−0.008 (0.001,<0.001)
3	Age X Annual Change in motor measure	−0.001 (0.0002,<0.001)	−0.001 (0.0003,<0.001)	−0.001 (0.0004,0.051)	−0.001 (0.0002,<0.001)
4	Sex (male)	0.030 (0.014, 0.032)	0.033 (0.016, 0.042)	0.011 (0.027,0.698)	0.015 (0.012, 0.187)
5	Sex X Annual Change in motor measure	0.002 (0.002, 0.387)	0.003 (0.003, 0.253)	0.002 (0.004,0.586)	−0.003 (0.002, 0.156)
6	Education	0.007 (0.002,<0.001)	0.007 (0.002, 0.002)	0.006 (0.004,0.103)	0.006 (0.002,<0.001)
7	Education X Annual Change in motor measure	0.000 (0.0003, 0.881)	0.0002 (0.0004,0.637)	0.0003 (0.001,0.680)	−0.001 (0.0003, 0.006)

^*Each column (Model 1–4) in this table shows the results for a single linear mixed effects model examining a different motor measure. Each of the 4 models included the same 7 terms. Term 1 summarizes the annual rate of change in motor function. Three terms (gray) examined the cross-sectional associations of age, sex and education with the level of motor function at baseline. Three additional terms (white) examined whether the annual rate of change in motor function varied with age, sex or education. Each row shows the results for same term to facilitate comparison between the different motor measures examined in these analyses. Each cell shows the Estimate (Standard Error, p Value) for a single term in the model. The model coefficients are interpreted with respect to a female participant 73 years old at baseline, with 15 years of education.