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. 2013 Jun;121(6):1217-1225.
doi: 10.1097/AOG.0b013e31828ec686.

Trends in hospital volume and patterns of referral for women with gynecologic cancers

Jason D Wright  1 , Alfred I Neugut, Sharyn N Lewin, Yu-Shiang Lu, Thomas J Herzog, Dawn L Hershman
Affiliations

Trends in hospital volume and patterns of referral for women with gynecologic cancers

Jason D Wright et al. Obstet Gynecol. 2013 Jun.

Abstract

Objective: To estimate trends in hospital volume and referral patterns for women with uterine and ovarian cancer.

Methods: The Surveillance, Epidemiology, and End Results-Medicare database was used to identify women aged 65 years or older with ovarian and uterine cancer who underwent surgery from 2000 to 2007. "Volume creep," when a greater number of patients undergo surgery at the same hospitals, and "market concentration," when a similar overall number of patients undergo a procedure but at a smaller number of hospitals, were analyzed.

Results: Among 4,522 patients with ovarian cancer, mean hospital volume increased from 3.1 cases during 2000-2001 to 3.4 cases during 2006-2007 (P=.62) suggesting minimal volume creep. Similarly, there was little evidence of market concentration. In 2000-2001, 37.8% of women were treated at the top decile by volume hospitals compared with 41.4% in 2006-2007 (P=.14). In 2006-2007, 201 (63.2%) of the hospitals had an ovarian cancer surgery volume of two or fewer cases. Among 9,908 women with uterine cancer, the mean hospital volume increased slightly from 4.5 in 2000-2001 to 5.4 in 2006-2007 (P=.10). The percentage of patients treated at the top decile by volume of hospitals increased from 40.4% in 2000-2001 to 44.7% in 2006-2007 (P<.001). In 2006-2007, 243 (49.3%) of the hospitals had a uterine cancer surgery volume of two or fewer cases.

Conclusion: There have been only modest changes in the referral patterns of women with ovarian and uterine cancer. A large number of hospitals have a very low procedural volume.

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Figures

Figure 1
Figure 1
Trends in hospital volume for women with uterine cancer. A. Mean and median hospital volume for all patients. B. Mean and median hospital volume for patients with advanced stage disease. C. Patients treated at low-volume (one or two patients) hospitals. D. Patients with advanced stage disease treated at low-volume (one or two patients) hospitals.
Figure 2
Figure 2
Trends in hospital volume for women with ovarian cancer. A. Mean and median hospital volume for all patients. B. Mean and median hospital volume for patients with advanced stage disease. C. Patients treated at low-volume (one or two patients) hospitals. D. Patients with advanced stage disease treated at low-volume (one or two patients) hospitals
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