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Study Design.

Retrospective cohort study of the Nationwide Readmissions Database (NRD).

Objective.

To determine causes of and independent risk factors for 30-and 90-day readmission in a cohort of anterior cervical discectomy and fusion (ACDF) patients.

Summary of Background Data.

Identifying populations at high-risk of 30-day readmission is a priority in healthcare reform so as to reduce cost and patient morbidity. However, among patients undergoing ACDF, nationally-representative data have been limited, and have seldom described 90-day readmissions, early reoperation, or socioeconomic influences.

Methods.

We queried the NRD, which longitudinally tracks 49.3% of hospitalizations, for all adult patients undergoing ACDF. We calculated the rates of, and determined reasons for, readmission and reoperation at 30 and 90 days, and determined risk factors for readmission at each timepoint.

Results.

We …