Figure 811

The United Network for Organ Sharing (UNOS) regions. UNOS is a not-for-profit corporation within the United States organized exclusively for charitable, educational, and scientific purposes related to organ procurement and transplantation. Its formation established a national Organ Procurement and Transplantation Network with the mandate to improve the effectiveness of the nation's renal and extrarenal organ procurement, distribution, and transplantation systems by increasing the availability of and access to donor organs for patients with end-stage organ failure. Additionally, the UNOS maintains quality assurance activities and systematically gathers and analyzes data and regularly publishes the results of the national experience in organ procurement and preservation, tissue typing, and clinical organ transplantation. Functionally, the United States is divided into UNOS regions as detailed on this map. Additional geographic divisions (ie, local designation) defined by the individual organ procurement organizations and the transplantation centers they service comprise the working system for cadaveric renal allocation.

UNITED NETWORK FOR ORGAN SHARING: NUMBER OF PATIENT REGISTRATIONS ON THE NATIONAL TRANSPLANT WAITING LIST AS OF OCTOBER 31, 1997

Kidney number

Kidney number

Kidney number

Kidney number by

Kidney number

by blood type (%)

by race (%)

by gender (%)

transplantation center region (%)

by age (%)

Type O: 19,654(52.04)

White: 18,353(48.59)

Female: 16,269(43.08)

Region 1: 1738(4.60)

0-5: 76(0.20)

Type A: 10,612(28.10)

Black: 13,290(35.19)

Male: 21,499(56.92)

Region 2: 6060(16.05)

6-10: 119(0.32)

Type B: 6579(17.42)

Hispanic: 3441(9.11)

Total: 37,768

Region 3: 3844(10.18)

11-17: 429(1.14)

Type AB: 923(2.44)

Asian: 2200(5.83)

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