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? References in periodicals archive |
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We performed the Cochran-Armitage trend test to determine whether the proportional change in the event rate was statistically significant across the ordinal time intervals from 2001 to 2004. Low risk patients who received perioperative beta blockers and proceeded to surgery without further testing had a cardiac event rate of 0. This was based on an American study with an adverse event rate of 3. |
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