Table 2.

The Association Between Physical Activity Status Across the Life Course and the Odds of Late Life Cognitive Impairment, as Defined by >1.5 SD Below the Mean mMMSE (mMMSE≤22), In Older Women.

Physical Activity		Odds Ratios (95% Confidence Interval)
Status	Prevalence (%)	Unadjusted	Adjusted
Teenage Physical Activity
Inactive	16.7	1.0 (Reference)	1.0 (Reference)
Active	8.5	0.46 (0.39–0.54)	0.65 (0.53–0.80)
Age 30 Physical Activity
Inactive	12.0	1.0 (Reference)	1.0 (Reference)
Active	8.9	0.71 (0.61–0.82)	0.80 (0.67–0.96)
Age 50 Physical Activity
Inactive	13.1	1.0 (Reference)	1.0 (Reference)
Active	8.5	0.62 (0.54–0.71)	0.71 (0.59–0.85)
Late Life Physical Activity
Inactive	15.9	1.0 (Reference)	1.0 (Reference)
Active	8.2	0.47 (0.41–0.55)	0.74 (0.61–0.91)

^*Adjusted models include significant confounders from descriptive analyses:

Teenage: age, education, marital status, diabetes, depressive symptoms, smoking, BMI

Age 30: education, diabetes, depressive symptoms, smoking, BMI

Age 50: age, education, marital status, diabetes, depressive symptoms, smoking, BMI