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Figure 5 Annualized Cardiac Event Rates

Annualized cardiac event rates by beta-blocker use in the pregnancy, postpartum, and post-postpartum time periods for 391 women who had a live birth between 1980 and 2003. Beta-blockers were associated with a significant reduction (p = 0.01) in the annualized cardiac event rate during the high-risk postpartum time period. See text for details.