LiverNational trends in the use of surgery for benign hepatic tumors in the United States
Section snippets
Data sources and samples
We conducted a retrospective analysis using the NIS database to examine the utilization of surgery for benign liver tumors between January 2001 and December 2011. The NIS database is maintained by the Agency for Healthcare Research and Quality as part of the Healthcare Cost and Utilization Project (HCUP) that contains deidentified data on patients enrolled in Medicare, Medicaid, private insurances, and the uninsured. NIS is the largest publicly available all-payer inpatient care database in the
Patient and hospital characteristics from 2000 to 2011
During the 12-year period, a total of 2,633 hepatic procedures were performed for benign liver tumors. The characteristics of the patients and hospitals are shown in Table I. Median age of the study population was 45 years (IQR, 35–56) and 82.3% (n = 2,157) of patients were female. The majority of patients were Caucasian (n = 1,542; 73.7%). Although patient age and race were similar across time periods in the study cohort, there was an increase in the proportion of female patients (P = .04).
Discussion
Benign liver tumors are common lesions that may be present in up to 20% of the population at autopsy.6, 30 With the expanding use of abdominal imaging, benign liver tumors are being identified increasingly31 and continue to represent a management challenge.22 Benign liver tumors are classified into solid or cystic tumors according to features on radiographic imaging.1 The most common solid benign liver tumors include hemangiomas, focal nodular hyperplasia, and hepatic adenoma, whereas simple
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Cited by (0)
Y.K. and N.A. contributed equally to the production of the manuscript.
Conflict of interest: none.