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Figure 2 Adjusted odds ratios for 90-day complications among Medicare beneficiaries who underwent implantable cardioverter-defibrillator implantation from 1999 through 2001 by physician quartile. Odds ratios were adjusted for age, gender, race, urgency of admission, Charlson comorbidity score, acute myocardial infarction, and pacemaker implant volume. Open bars = 1 to 10; ruled bars = 11 to 18; dotted bars = 19 to 28; solid bars = 29+.
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