Table 3.

Association of Composite Physical Activity Score With Clinically Significant Increase^* in cTnT Among Those With Detectable cTnT at Baseline (n = 1,757)

	Unadjusted (n = 1,757)	Demographic Variable† Adjusted (n = 1,757)	Comorbidity Adjusted‡ (n = 1,718)
Composite Activity Score
2 (n = 208, 11.8%)	Reference	Reference	Reference
3 (n = 283, 16.1%)	0.70 (0.37–1.05)	0.73 (0.48–1.09)	0.69 (0.45–1.05)
4 (n = 363, 20.7%)	0.66 (0.45–0.97)	0.70 (0.47–1.03)	0.72 (0.48–1.08)
5 (n = 363, 23.1%)	0.66 (0.45–0.96)	0.65 (0.44–0.96)	0.69 (0.46–1.04)
6 (n = 405, 23.1%)	0.48 (0.32–0.72)	0.49 (0.32–0.75)	0.52 (0.33–0.81)
7 (n = 167, 9.5%)	0.27 (0.15–0.47)	0.27 (0.15–0.49)	0.30 (0.16–0.55)
Test for trend	p < 0.001	p < 0.001	p < 0.001

Values are odds ratio (95% confidence interval).

^*Increase >50% from baseline. Participants with a >50% decrease were combined with those with <50% change. All models additionally adjusted for baseline cTnT concentration.

^†Demographic variables: age, sex, race (African American or other), and education (more than high school).

^‡Comorbidities: body mass index, diabetes, hypertension, coronary heart disease, claudication, emphysema, stroke, major electrocardiographic abnormality, and self-reported health.

cTnT = cardiac troponin T; other abbreviations as in Table 2.