Table 1.

Descriptive characteristics, and associations with early and late PA and PF slopes.

Participant characteristics	Analytic samplea	Early PA slopeb	Late PA slopeb	Early PF slopeb	Late PF slopeb
Cycle 1	n = 1,404	(Cycles 1–5)	(Cycles 5–9)	(Cycles 1–5)	(Cycles 5–9)
Age	76.96 (7.2)	0.01	0.05*	0.25**	−0.07*
Sex, female	876 (62.4%)	−0.64	−1.41	−0.27	0.23
Race, white	1337 (95.2%)	−1.52	0.52	−0.12	1.25
Education, >HS	609 (43.38%)	0.21	0.31	9.46**	1.72
MMSE score	27.84 (1.99)	0.05	0.01	0.01	0.02
CDR score, MCI (score = 0.5)#	338 (24.1%)	0.24	0.08	16.48**	3.44*
Painful gait, present	158 (11.3%)	−0.80	0.20	0.13	0.47
≥1 Alcohol drinks/week	324 (23.1%)	−0.30	0.26	1.26	0.34
Ever smoker	734 (52.3%)	−0.64	−0.37	2.04*	0.32
BMI	28.06 (5.40)	0.05	0.06*	0.02	0.05
Stroke/TIA, present	153 (10.9%)	0.52	−0.66	−2.71*	0.75
Myocardial infarction, present	192 (13.7%)	0.52	0.65	−1.88	−0.61
Hypertension, present	900 (64.1%)	0.53	0.52	−2.06*	−1.31
Diabetes, present	289 (20.6%)	−0.30	−0.97	−1.38	−0.59
Heart failure, present	99 (7.1%)	2.28*	−1.16	−1.83	0.04
TUG time, sec	12.75 (4.06)	−0.01	0.04	−0.02	−0.23**
PA, min/week	66.45 (115.12)	−0.56**	−0.33**	−0.04	−0.04
Cycle 9
TUG time, sec	14.40 (4.31)	0.03	−0.02	0.24**	0.67**
PA, min/week	33.61 (73.43)	0.12*	0.26**	−0.07*	−0.14**
MMSE score	28.07 (3.86)	0.06	0.06	−0.04	−0.04
Worsening CDR score, present	120 (8.6%)	1.79	1.10	−3.76**	−3.59**

^aMean (SD) presented for continuous and N(%) presented for categorical variables.

^bT-tests (t-statistics shown) or ANOVA (F-statistics shown) used for mean comparisons for two- and three-level categorical variables, respectively; Pearson’s correlations reported for continuous variables.

*Indicates P value ≤0.05.

**Indicates P value ≤0.001.

^#CDR score indicating cognitively normal n = 1,060 (75.5%) and CDR score indicating dementia n = 6 (0.04%).