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Association of “Recent” Relative to “No Recent” Family/Friend Events and Sudden Cardiac Arrest by Presence of Habitual Vigorous Physical Activity a
| Habitual Vigorous Physical Activity | No. Cases | OR (95% CI) b |
|---|---|---|
| Yes | 145 | 1.1 (0.6-2.2) |
| No | 345 | 2.0(1.2-3.1) |
| Relative OR c | 0.6 (0.3 - 1.3) |
Defined as ≥ 20 minutes/week of high-intensity leisure-time activity.
ORs are adjusted for season.
Relative OR= ORYes/ORNo, likelihood ratio test for interaction P = 0.2.
