Key result
Lower mean baseline physical activity (30 minutes/day less) measured by ICDs was independently associated with a higher risk of death (HR 1.44; 95% CI 1.427-1.462).
Why the study?
Does physical activity measured by ICDs correlate with survival in patients with ICDs?
Cohort (n=98,437)
Yes
Does physical activity measured by ICDs correlate with survival in patients with ICDs?
Hazard Ratio: 1.44 (95% CI 1.427–1.462)
p-value: p=<0.001
Patient activity measured automatically by ICDs is a strong, independent predictor of survival, with lower activity correlating with significantly higher mortality.
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May support ICD activity for risk stratification in device patients; leaves open whether activity interventions improve survival.
Kramer et al. (2015) conducted a cohort in Implantable cardioverter-defibrillators (ICDs) (n=98,437). Lower mean baseline physical activity (30 minutes/day less) vs. Higher physical activity was evaluated on death (HR 1.44, 95% CI 1.427-1.462, p=<0.001). Lower mean baseline physical activity (30 minutes/day less) measured by ICDs was independently associated with a higher risk of death (HR 1.44; 95% CI 1.427-1.462).
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