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Figure 1 Comparison of lengths of stay and 30-day outcomes between patients transferred for primary angioplasty (PA) to tertiary cardiac surgical centers and those treated with on-site PA at hospitals without cardiac surgery. The graph on the left demonstrates a trend toward a shorter hospital stay in patients treated with on-site PA. The graph on the right demonstrates a strong trend toward lower mortality at 30 days in patients treated with on-site PA, but no significant differences in recurrent myocardial infarction (reMI), disabling cerebrovascular accident (CVA), or the combination of these major adverse cardiovascular events (MACE) at 30 days. Solid bars = patients transferred to tertiary centers for PA; striped bars = patients treated with on-site PA at nonsurgical hospitals.