Controlling for other factors, patients treated by low- and medium-volume surgeons (OR 3.7, P = .002; OR 2.8, P = .015) and hospitals (OR 2.3, P = .01; OR 2.44, P = .017) had increased odds of 30-day mortality versus high-volume surgeons and hospitals. LOS was significantly shorter at high-volume hospitals as well.

CONCLUSIONS: In Pennsylvania, high volume is associated with decreased mortality and LOS.

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