Key result
Coronary artery bypass grafting in-hospital mortality varied significantly among medical centers (P=0.021) and surgeons (P=0.025) independent of patient case mix, with an overall rate of 4.3%.
Why the study?
Does the institution or surgeon affect in-hospital mortality rates in patients undergoing isolated CABG after adjusting for case mix?
Cohort (n=3,055)
Yes
Does the institution or surgeon affect in-hospital mortality rates in patients undergoing isolated CABG after adjusting for case mix?
p-value: p=0.021
Significant variability in CABG in-hospital mortality exists among centers and surgeons even after adjusting for patient case mix, highlighting the impact of care processes.
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Center- and surgeon-level CABG mortality variation may reflect care differences; hypothesis-generating and requires prospective validation before guiding referrals.
George O'connor (1991) conducted a cohort in Coronary artery disease requiring CABG (n=3,055). Coronary artery bypass grafting (CABG) was evaluated on Crude and adjusted in-hospital mortality rates (p=0.021). Coronary artery bypass grafting in-hospital mortality varied significantly among medical centers (P=0.021) and surgeons (P=0.025) independent of patient case mix, with an overall rate of 4.3%.
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