. Author manuscript; available in PMC: 2020 Jun 10.

Published in final edited form as: J Alzheimers Dis. 2019;71(1):109–118. doi: 10.3233/JAD-190491

Table 1.

Characteristics of participants by physical activity status at the initial cognitive assessment

	Inactive N = 587	Active N = 1440	Group effect
Age (y)	75.3 ± 9.4	72.8 ± 8.8	t = 5.42, p < 0.001
Sex (% women)	68	57	χ² = 18.76, p < 0.001
Education (y)	14.1 ± 2.2	14.5 ± 2.3	t = 3.01, p = 0.003
Total number of visits	2.5 ± 1.8	3.1 ± 1.9	t = 7.08, p < 0.001
Follow-up time (y)	5.9 ± 6.9	8.4 ± 7.3	t = 7.27, p < 0.001
Active as teenager (%)	79	84	χ² = 26.76, p < 0.001
Active at age 30 (%)	54	67	χ² = 8.35, p = 0.004
Alcohol (drinks/week)	5.2 ± 7.3	5.7 ± 7.2	t = 1.58, p = 0.12
Smoking (% former/current)	44 / 12	51 / 7	χ² = 16.95, p < 0.001
BMI (kg/m²)^*	25.5 ± 4.3	25.0 ± 3.5	F = 8.55, p = 0.004
# Medical conditions	1.3 ± 1.0	1.1 ± 1.0	t = 3.58, p < 0.001
Cognitively Impaired at baseline (%)	18	14	χ² = 6.45, p = 0.01

Adjusted for sex.