Current randomized control trials, observational studies and meta analysis in off-pump coronary surgery.

J Cardiothorac Surg · 2015 · PMC4682278 · PMID 26678987

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did not reach statistical significanceno p-value reported

Even though the risk-adjusted operative mortality rate for off-pump was lower (2.02 % versus 2.16 %) it did not reach statistical significance.

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highly significantno p-value reported

The authors show a significant reduction in operative mortality in the off-pump group, as well as a highly significant reduction in overall adverse cardiac events, permanent stroke, dialysis, re-operation, prolonged ventilation, sternal wound infection, renal failure, and prolonged length of stay.

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Quoted from the open-access full text in Europe PMC under the licence the publisher applied. The sentence is reproduced exactly as published; the emphasis is ours.