Table 2.

Cross-Sectional Analysis of the Association Between Participants' Physical Activity and Their Spouse's Physical Activity at Visit 1 (1987–1989), the Atherosclerosis Risk in Communities Study^a

Physical Activity Model	Men		Women
	Physical Activityb	95% CI	Physical Activityb	95% CI
Physical Activity From Sport/Exercisec (3,261 Pairs)
Unadjusted	0.21	0.18, 0.25	0.19	0.16, 0.23
Unadjusted and demographic characteristicsd	0.17	0.13, 0.20	0.16	0.13, 0.19
Unadjusted, demographic characteristics, illness, and behavior characteristicse	0.15	0.12, 0.19	0.15	0.12, 0.18
Unadjusted, demographic characteristics, illness, behavior characteristics, and spousal characteristicsf	0.15	0.12, 0.19	0.15	0.11, 0.18
Leisure Physical Activityc (3,261 Pairs)
Unadjusted	0.21	0.18, 0.24	0.24	0.21, 0.28
Unadjusted and demographic characteristicsd	0.18	0.15, 0.21	0.20	0.16, 0.23
Unadjusted, demographic characteristics, illness, and behavior characteristicse	0.17	0.13, 0.20	0.19	0.16, 0.23
Unadjusted, demographic characteristics, illness, behavior characteristics, and spousal characteristicsf	0.17	0.14, 0.20	0.19	0.16, 0.23

Abbreviation: CI, confidence interval.

^a All P values < 0.001.

^b Difference (per standard deviation) in participant's estimated physical activity associated with a 1–standard deviation increase in his or her spouse's physical activity.

^c Physical activity measured by Baecke physical activity indices (26) for sport/exercise and leisure physical activity.

^d Demographic characteristics include age, race, study center, education, and employment status.

^e Illness and behavioral characteristics include smoking status, health status, body mass index, diabetes, hypertension, coronary heart disease, and cancer.

^f Spousal characteristics include age, race, study center, education, employment status, smoking status, health status, body mass index, diabetes, hypertension, coronary heart disease, and cancer.