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Comment & Response |

Anesthesia Technique and Outcomes After Hip Fracture Surgery—Reply

Mark D. Neuman, MD, MSc1; Paul R. Rosenbaum, PhD2; Jeffrey H. Silber, MD, PhD3
[+] Author Affiliations
1Department of Anesthesiology and Critical Care, University of Pennsylvania Perelman School of Medicine, Philadelphia
2Department of Statistics, Wharton School at the University of Pennsylvania, Philadelphia
3Center for Outcomes Research, Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania
JAMA. 2014;312(17):1802. doi:10.1001/jama.2014.11232.
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In Reply Our study evaluated the association between anesthesia technique and outcome among patients with hip fracture, observing an indeterminate effect of anesthesia technique on 30-day mortality and a shorter inpatient length of stay with regional anesthesia.

One of our analyses used geographic proximity to hospitals that used more regional anesthesia as an instrumental variable for receipt of regional anesthesia, the thought being that after adjustment for measured medical and socioeconomic characteristics, geographic proximity was not indicative of patients with particular unmeasured health problems.


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November 5, 2014
Derek Dillane, MB BCh, BAO, MMedSci; James Green, MB BS, FRCA
1Department of Anesthesiology and Pain Medicine, University of Alberta, Edmonton, Canada
JAMA. 2014;312(17):1801-1802. doi:10.1001/jama.2014.11226.
November 5, 2014
Catherine M. Bulka, MPH; Jonathan P. Wanderer, MD, MPhil; Jesse M. Ehrenfeld, MD, MPH
1Department of Anesthesiology, Vanderbilt University, Nashville, Tennessee
JAMA. 2014;312(17):1801. doi:10.1001/jama.2014.11229.
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