Technical Methods for Donation Service Areas (DSAs) / Organ Procurement Organizations (OPOs)
This page details the conventions used by the SRTR for analyses included in the
Organ Procurement Organization-Specific Reports.
Risk-Adjustment Models for OPO Donor Conversion Rates.
Table of Contents
Introduction
Table 1. Number of Deceased Donors and
Organs Recovered
Donor Count
Donations After Cardiac Death (DCD)
Expanded Criteria Donors (ECD)
Standard Criteria Donors (SCD)
Donors per Organ
Organs Recovered
Organ Recovered per Donor
(average)
Organs Transplanted
Organs Transplanted per Donor (average)
Percentage of Organs Transplanted
Table 2. Number and Location of Organs
Transplanted for Organs Recovered from Deceased Donors within This DSA/OPO
This DSA/OPO
Transplant Centers Served by this
DSA/OPO
Other Centers
Table 3. Measures of Donor
Procurement Rates
Deceased Donors (All)
Deceased Donors Meeting Eligibility
Criteria
Additional Donors
Eligible Deaths
Observed (Crude) Donation Rate
Observed (Crude) Organ-Specific Rates
Notifiable Death Count
Observed (Crude) Notification Rate
Expected Measures of Donation
Table IIIA. Measures of Donor
Procurement Rates by Hospital
Table 4. Characteristics of
Recovered Donors
Donor Count
Race
Age
Gender
Blood Type
Cause of Death
Donation After Cardiac Death (DCD)
Table 5. Characteristics of Recovered Donors,
By Organ
Donor Count by Organ
Race
Age
Gender
Blood Type
Cause of Death
Donation After Cardiac Death (DCD)
Expanded Criteria Donors
Table 6. Percent Transplanted
(Excludes Living Donor Recipients) for Waitlist Patients at this Center
Table 7. Time to Transplant for Waitlist
Candidates
Table 8. Summaries for Characteristics
of Deceased Donor Transplant Recipients by Organ Transplanted
Total Number of Transplants
Race
Age
Gender
Blood Type
Peak Panel Reactive Antibody (Kidney,
Pancreas and Kidney/Pancreas Programs Only)
Primary Cause of Disease (Not Shown for
Pancreas and Kidney/Pancreas)
Recipient Medical Urgency Status at
Transplant (Shown for Recipients of Deceased Donor Liver and Heart Donors Only)
Expanded Criteria Donors
(Kidney Only)
Table 9. Counties Assigned to This OPO
by HCFA by Year
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Introduction
There are 9 tables that report statistics for the 59 individual Organ
Procurement Organizations (OPOs) and their Donation Service Areas (DSAs). The
statistics in these tables are based on data available from the Organ
Procurement and Transplant Network (OPTN) as of October 31, 2007. These
tables report organ procurement and transplantation activities. Generally, the
same conventions that have been used previously by the OPTN to tabulate donors,
organs, transplants, and transplant operations were used here. These tables are
described individually below.
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Table 1. Number of Deceased Donors and Organs Recovered
The "Recovered (n)" columns of Table 1 summarize the number of deceased donors
and the number of organs recovered and the number of organs transplanted, by
type of organ, between July 2005 and June 2007. The average number of
organs recovered and transplanted per donor is reported; the percentage
of recovered organs that are transplanted is also shown. These calculation
are displayed among all donors and by donor type (Standard Criteria Donors,
Donors after Cardiac Death and Expanded Criteria Donors).
Donor Count
The total number of recovered donors during these years by this DSA/OPO and
throughout the U.S. is reported. Recovered donors include any donor from whom
at least one solid organ was recovered for the intent of transplantation,
regardless of whether the organ was transplanted or not. This table includes
donors of all organ types in the deceased donor population.
Donation After Cardiac Death (DCD)
The number of recovered donors that were reported as "donation after cardiac
death" is reported for each year. These donors are also included in the total
donor count.
Expanded Criteria Donors (ECD)
The number of donors meeting the expanded donor criteria is reported. Donors
that meet the expanded criteria are those over 60 years of age and those
between 50 and 59 years of age meeting two of the following three conditions:
died of a stroke, had a history of hypertension, or had a serum creatinine of
greater than 1.5. Expanded Criteria Donors donating after cardiac death are
included here and counted as ECD donors and not DCD donors.
Standard Criteria Donors (SCD)
The number of donors that are neither Expanded Criteria Donors (ECD) nor Donors
after Cardiac Death (DCD) is also reported. These donors are less than 50 years
of age, or they are between ages 50 and 59 meeting one or none of the following
three conditions: died of a stroke, had a history of hypertension, or had a
serum creatinine of greater than 1.5. Furthermore, these donors had their
organs recovered prior to cardiac death.
Donors per Organ
The number of donors from which each organ was recovered is reported.
Additionally, the percent of all donors from which each organ was recovered is
shown. For example, if there were 100 total donors shown above, and kidneys
were recovered from 92 of these donors, then 92% of donors would be counted as
kidney donors.
Organs Recovered
The total number of each organ recovered for each year is reported. This number
is calculated as the sum of recovered organs by organ type, i.e., in the case
of kidneys recovered, up to two kidneys can be recovered from an individual
donor; however, only one heart can be recovered from each donor.
Technical note: pairs of kidneys recovered “en-bloc” and pairs of lungs
recovered “en-bloc” are counted as two organs each. Kidney recoveries are
counted separately from pancreas recoveries, regardless of whether they were
transplanted together. Similarly, other organ combinations (hearts and lungs)
were counted individually, regardless of whether they were transplanted
together. Heart valves are not counted as recovered organs.
Each liver was counted only once, even if it was split for transplantation.
Organs divided into segments (liver, lung, pancreas, intestine) are counted as
being recovered only once for that organ;
Organs Recovered per Donor (average)
The average number of organs recovered per donor is calculated and shown here,
taking into account the disparity in the number of organs recovered per donor
(ORPD) among ECD, DCD and Standard Criteria Donors (SCD). Stratifying by these
3 categories of deceased donors takes into consideration the difference in OPO
practice in pursuing ”non-traditional” donors. For comparison purposes,
corresponding data for the entire U.S are also reported.
Organs Transplanted
The number of organs recovered at this DSA/OPO that resulted in a
transplant for each year is shown in the columns labeled "Transplanted" under
"This DSA". This number includes organs recovered in this DSA/OPO that
were exported to another DSA/OPO for transplant. Organs divided into segments
(liver, lung, pancreas, intestine) may account for more than one transplant,
meaning it is possible for the number transplanted to exceed the number
recovered.
Note that this is based on a count of recovered organs that were transplanted,
which differs from the number of transplant operations. Since multiple organs
can result in one transplant procedure (i.e. a double lung transplant) and a
single organ can result in multiple transplant procedures (i.e. liver
segments), the totals in this table may not agree with transplant counts in
other tables. For the purposes of comparison, corresponding data for the entire
U.S., at each time period, are also reported.
Organs Transplanted per Donor (average)
The average number of organs transplanted per donor is calculated and shown
here, taking into account the disparity in the number of organs recovered per
donor (ORPD) among ECD, DCD and Standard Criteria Donors (SCD).
Percentage of Organs Transplanted
The percentage of organs transplanted among all organs recovered. This
percentage is calculated both for organs in total and by organ type. Also, it
is shown for each of the donor types.
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Table 2. Number and Location of Organs Transplanted for Organs Recovered from
Deceased Donors within This DSA/OPO
Table 2 summarizes the number, type, and location of deceased donor organs
transplanted within this DSA/OPO as well as those exported and transplanted at
transplant centers in other DSAs/OPOs between July 2005 and June 2007.
This DSA/OPO
The total number of each organ type that was recovered within this DSA/OPO and
that resulted in a transplant (whether at a transplant center in this DSA/OPO
service area or the service area of another DSA/OPO) during these years is
reported. This includes only organs that were recovered from a deceased donor
by this DSA/OPO and is a count of the number of organs transplanted, not the
number of transplant procedures. Since multiple organs can result in one
transplant procedure (i.e. a double lung transplant) and a single organ can
result in multiple transplant procedures (i.e. liver segments), the totals in
this table may not agree with transplant counts found in other tables.
Transplant Centers Served by this DSA/OPO
The transplant centers that are served by this DSA/OPO are listed. The total
number of each organ type transplanted in each transplant center using organs
recovered within this DSA/OPO during these years is reported. Again, this is
the number of organs transplanted by each center within the DSA/OPO, not the
number of transplant procedures that occurred at each transplant center.
Other Centers
The number of organs recovered by this DSA/OPO that were exported to a
transplant center covered by another DSA/OPO and transplanted is reported.
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Table 3. Measures of Donor Procurement Rates
The nation's Organ Procurement and Transplantation Network (OPTN) consists of 59
separate Donation Service Areas (DSAs). A DSA consists of an Organ Procurement
Organization (OPO), at least one transplant center, and two or more hospitals.
Table 3 provides measures of donation rates and the basic components that
determine these rates for each of the DSAs. In addition, the table provides the
national distribution of select observed measures as a reference for each DSA.
The first section of table 3 presents observed donor recovery and referral data
reported to the OPTN/SRTR from July 2006 to June 2007.
Deceased Donors (All)
All deceased donors recovered in this DSA.
Deceased Donors Meeting Eligibility Criteria
Deceased donors aged 0-70 meeting death by neurological criteria.
Additional Donors
Deceased donors age greater than 70 or donation after Cardiac Death (DCD)
donors.
Eligible Deaths
Any death or imminent death (ventilated and non-ventilated) reported by
a hospital that is evaluated and meets organ donor eligibility requirements.
Any patient aged 70 or younger meeting death by neurological criteria,
based on the American Academy of Neurology Practice parameters for determining
brain death, who does not have any of the following indications:
- Tuberculosis
- Human Immunodeficiency Virus Infection with Specified Conditions
- Creutzfeldt-Jacob Disease
- Herpetic Septicemia
- Rabies
- Reactive Hepatitis B Surface Antigen
- Any retrovirus infection
- Active Malignant Neoplasms, except Primary CNS tumors and skin cancers
- Hodgkin's Disease, Multiple Myeloma, Leukemia
- Miscellaneous Carcinomas
- Aplastic Anemia
- Agranulocytosis
- Fungal and Viral Encephalitis
- Gangrene of Bowel
- Extreme Immaturity
- Positive Serological or Viral Culture Findings for HIV
Observed (Crude) Donation Rate
The number of Deceased Donors Meeting Eligibility Criteria per 100 Eligible
Deaths is reported.
Observed (Crude) Organ-Specific Rates
The number of donors of each organ type (not the number of organs as in past reports) meeting eligibility criteria
per 100 Eligible deaths is shown. These rates are provided for kidney, liver,
heart, lung and pancreas.
Notifiable Death Count
This count includes the subset of all in-hospital deaths age 0-70 with no
exclusionary medical diagnoses for possible donation. The number of Notifiable
Deaths is based on methodology to determine the relevant subset of deaths in a
geographic area, described in Ojo et al, Transplantation, 1999.
In May 2005, the SRTR criteria for identifying a notifiable death was modified
to reflect OPTN cause of death exclusionary criteria for determining eligible
deaths. This modification results in higher notifiable death counts nationally.
Observed (Crude) Notification Rate
The number of Eligible Deaths per 100 Notifiable Deaths is reported. SRTR
adjustments (described above) to the Notifiable Death count have resulted in
lower Observed Notification Rates nationally.
Expected Measures of Donation
The SRTR is not publishing expected donation rate statistics in this release of
OPO-Specific data, but may do so retrospectively, for this time period, at some
time in the future. The lack of data for individual eligible deaths, currently,
does not allow for substantive statistical adjustment to be made to donation rates,
and the data currently available for use in the models cannot currently be released
to the public. The statistics found in the OPO specific reports were intended to be
used by the OPTN and OPOs for quality improvement purposes. The purpose of statistical
adjustment is to identify differences in outcomes that can be attributed largely to
differences in OPO practices, rather than to differences in the composition of their
eligible death populations. The SRTR will continue to work with the OPTN, HRSA,
and the OPO community to improve available data for adjustment of these models.
Since the ability to accurately identify OPOs with lower than expected donation rates
depends upon the statistical adjustments made, the SRTR believes it is important to
assess the sources of variation among the OPOs in donation rates before finalizing the
methods for assigning statistical significance to the comparison of donation rates among OPOs.
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IIIa. Measures of Donor Procurement Rates by Hospital
This table provides the observed and expected measures of donation rates by
hospital for each Donation Service Area. Hospitals are identified as unique
providers by a considering the combination of provider number and provider name
along with city, state and zip code of provider. The standardized ratio and p-value
comparing observed to expected are also provided. Within each DSA, the observed
meausres aggregate to the DSA-level donation statistics in Table 3.
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Table 4. Characteristics of Recovered Donors
Table 4 summarizes the characteristics of donors recovered during two time
periods by this DSA/OPO. The two time periods are July 2005 through June 2006 and July 2006
through June 2007.
For the purposes of comparison,
corresponding data for the entire U.S., at each time period, are also reported.
Donor Count
The total number of recovered donors during this period by this DSA/OPO and
throughout the U.S. is reported. Recovered donors include any donor from whom
at least one organ was recovered, regardless of whether the organ was
transplanted or not. This table identifies all donor types in the donor
population. The summaries of the donor characteristics in Table 4 are based on
these donor population counts.
Race
The percentage of recovered donors in each of five race categories is reported.
Race and ethnicity are reported together as a single data element, reflecting
their data collection (either race or ethnicity is required, but not both).
Patients formerly coded as white and Hispanic are coded as Hispanic. Race and
ethnicity sum to 100 percent. The categories are: Asian/Pacific Islander,
Black, White, Hispanic/Latino, a combined group for other races, and Unknown is
shown. Missing values were reported in the Unknown category.
Age
Age was determined at the date of death/recovery of organs for each donor. The
percentage of donors in each of several age ranges is reported. Missing values
were reported in the Unknown category.
Gender
The percentage of male and female donors is reported. Missing values were
reported in the Unknown category.
Blood Type
The percentage of donors by ABO type (O, A, B, AB) is reported. Donors with ABO
type A, A1, or A2 were classified as A. Donors with ABO type AB, A1B, or A2B
were classified as AB. Missing values were reported in the Unknown category.
Cause of Death
The percentage of recovered donors in each of the major cause of death
categories is reported. The categories for cause of death are: anoxia, stroke,
CNS tumor, head trauma, other and unknown. Any missing values were reported in
the Unknown category.
Donation After Cardiac Death (DCD)
The percentage of recovered donors for which cardiac death had occurred is
reported.
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Table 5. Characteristics of Recovered Donors, By Organ
Table 5 summarizes the characteristics of kidney, liver, and heart donors
recovered from July 2005 through June 2007 by this DSA/OPO.
Donor Count by Organ
The total number of kidney, liver, and heart donors who were recovered during
this period by this DSA/OPO is reported. Recovered donors include any donor
from whom an organ was recovered, regardless of whether the organ was
transplanted or not. This table identifies only donors from whom a liver,
heart, or at least one kidney was recovered. The summaries of the donor
characteristics in Table 5 are based on these donor population counts.
Race
The percentage of recovered donors in each of five race categories is reported.
Race and ethnicity are reported together as a single data element, reflecting
their data collection (either race or ethnicity is required, but not both).
Patients formerly coded as white and Hispanic are coded as Hispanic. Race and
ethnicity sum to 100 percent. The categories are: Asian/Pacific Islander,
Black, White, Hispanic/Latino, a combined group for other races, and Unknown is
shown.
Missing values were reported in the Unknown category.
Age
Age was determined at the date of death/recovery of organs for each donor. The
percentage of donors in each of several age ranges is reported. Missing values
were reported in the Unknown category.
Gender
The percentage of male and female donors is reported. Missing values were
reported in the Unknown category.
Blood Type
The percentage of donors by ABO type (O, A, B, AB) is reported. Donors with ABO
type A, A1, or A2 were classified as A. Donors with ABO type AB, A1B, or A2B
were classified as AB. Missing values were reported in the Unknown category.
Cause of Death
The percentage of recovered donors in each of the major cause of death
categories is reported. The categories for cause of death are: anoxia, stroke,
CNS tumor, head trauma, other and unknown. Any missing values were reported in
the Unknown category.
Donation After Cardiac Death (DCD)
The percentage of recovered donors for which cardiac death had occurred is
reported for each of the three organ types--kidney, liver, and heart.
Expanded Criteria Donors
The percentage of donors who met the expanded donor criteria is reported only
for kidneys. Donors that meet the expanded criteria are those over 60 years of
age and those between 50 and 59 years of age who either died of a stroke, had a
history of hypertension, or had a serum creatinine of greater than 1.5.
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Table 6. Percent Transplanted (Excludes Living Donor Recipients) for Waitlist
Patients at this Center
Table 6 gives the percentages of patients who received a transplant at the
specified times (1 month, 1 year, 2 years, and 3 years after waitlisting) among
those who were placed on the kidney waitlist at centers served by the given
DSA/OPO from Jul
1, 2001 - Jun 30, 2004. This information is given for the
DSA/OPO and, for purposes of comparison, for the U.S. as a whole. The data
exclude patients who were removed from the waitlist with a removal code
indicating transplant from a living donor.
This analysis includes patients whose waitlist status was temporarily inactive
and patients who spent periods of time in temporarily inactive status. The
statistics are calculated as simple fractions and the analysis does not censor
patients if they were removed for reasons other than receiving a transplant.
Thus, patients who die before receiving a transplant are counted at all times
as not having received a transplant. Each percentage is calculated among all
patients and separately for different classifications of: race, age, gender,
blood type, previous transplant, primary disease, and peak PRA.
The percentage shown is calculated as: 100 x (number of patients placed on the
waitlist between 7/1/2001 12:00:00 AM and 6/30/2004 12:00:00 AM who received a
transplant prior to a specified number of months after waitlisting) / (total number of patients placed on the waitlist between 7/1/2001 12:00:00 AM and 6/30/2004 12:00:00 AM).
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Table 7. Time to Transplant for Waitlist Candidates
Table 7 gives the median (50th percentile) waiting time until transplant (both
deceased and living related transplants) for patients who were placed on the
waitlist for a kidney, liver, or heart between July 1, 2001 and December 31, 2006,
as well as the 5th, 10th, 25th and
75th percentile waiting times. All percentiles are shown only when
applicable. The information in this table is for all patients placed on the
waitlist at a center in the given DSA/OPO during the applicable time period.
For purposes of comparison, corresponding times to transplant at each
percentile for the U.S. as a whole are also reported. Patients with multiple
waitlistings are counted multiple times in this analysis.
Waiting time until transplant is calculated as the time (in months) after a
candidate is placed on the waitlist, by which the corresponding percent of all
patients initially waitlisted had been removed from the waitlist for receiving
a transplant. A Kaplan-Meier model was used with censoring on a) June 30, 2007,
for those registrations still waiting on that date; and b) the date of
removal from the waiting list for recovery, or c) the date of removal from the
waiting list for a transfer. If a cell is blank then less than that percentage
of patients placed had received a transplant by the end of follow-up.
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Table 8. Summaries for Characteristics of Deceased Donor Transplant Recipients by
Organ Transplanted
Table 8 summarizes the characteristics of deceased donor transplant recipients
who received a transplant between between July 2005 and June 2006 or between July 2006
and June 2007
at transplant centers within the service area of this
DSA/OPO, with corresponding average values among recipients in this region and
the U.S. Only transplants resulting from locally procured donors or from organs
imported from another DSA/OPO to a transplant center in the service area of
this DSA/OPO are included. Transplants resulting from organs exported from this
DSA/OPO to a transplant center in the service area of another DSA/OPO are
excluded. Separate tables are provided for kidney, kidney/pancreas, pancreas,
liver, heart, heart-lung, and lung transplants.
Total Number of Transplants
The total number of patients who received locally procured organ transplants
during this period at transplant centers within the service area of this
DSA/OPO is reported. The summaries of the patient characteristics in Table 6
are based on the patient population count.
Race
The percentage of recovered donors in each of five race categories is reported.
Race and ethnicity are reported together as a single data element, reflecting
their data collection (either race or ethnicity is required, but not both).
Patients formerly coded as white and Hispanic are coded as Hispanic. Race and
ethnicity sum to 100 percent. The categories are: Asian/Pacific Islander,
Black, White, Hispanic/Latino, a combined group for other races, and Unknown is
shown.
Missing values were reported in the Unknown category.
Age
Age was determined at the date of transplant for each patient. The percentage
of recipients in each of several age ranges is reported. Missing values were
reported in the Unknown category.
Gender
The percentage of male and female recipients is reported. Missing values were
reported in the Unknown category.
Blood Type
The percentage of recipients by ABO type (O, A, B, AB) is reported. Recipients
with ABO type A, A1, or A2 were classified as A. Recipients with ABO type AB,
A1B, or A2B were classified as AB. Missing values were reported in the Unknown
category.
Peak Panel Reactive Antibody (Kidney, Pancreas and Kidney/Pancreas Programs Only)
The recipients' highest panel reactive antibody (PRA) on the waitlist is shown
for recipients who received a kidney, pancreas, or kidney/pancreas. The
percentage of recipients in each of several PRA ranges (0-9, 10-79, 80+) is
reported. Missing values were reported in the Unknown category.
Primary Cause of Disease (Not Shown for Pancreas and Kidney/Pancreas)
The percentage of patients in each of the major categories of primary cause of
organ failure is reported. The major categories for each organ are shown below.
Primary diagnosis group is not shown for pancreas and kidney/pancreas because
virtually all such patients received a transplant for diabetes mellitus.
Kidney
-
Glomerular diseases
-
Tubular and interstitial disease
-
Polycystic kidney disease
-
Congenital, familial, metabolic renal diseases
-
Diabetes mellitus
-
Renovascular vascular diseases
-
Neoplasms
-
Hypertensive nephrosclerosis
-
Retransplant/graft failure
-
Other kidney diseases
-
Missing
Liver
-
Acute hepatic necrosis
-
Non-cholestatic cirrhosis
-
Cholestatic liver disease/cirrhosis
-
Biliary atresia
-
Metabolic diseases
-
Malignant neoplasms
-
Other
-
Missing
Intestine
-
Short gut syndrome
-
Functional bowel problem
-
Retransplant/graft failure
-
Other
-
Missing
Heart
-
Cardiomyopathy
-
Coronary artery disease
-
Retransplant/graft failure
-
Valvular heart disease
-
Congenital heart disease
-
Other
-
Missing
Lung
-
Congenital disease
-
Retransplant/graft failure
-
Primary pulmonary hypertension
-
Cystic fibrosis
-
Idiopathic pulmonary fibrosis
-
Alpha-1-antitrypsin deficiency
-
Emphysema/Chronic obstructive pulmonary disease (COPD)
-
Other
-
Missing
Heart-Lung
-
Congenital disease
-
Retransplant/graft failure
-
Primary pulmonary hypertension
-
Cystic fibrosis
-
Idiopathic pulmonary fibrosis
-
Alpha-1-antitrypsin deficiency
-
Emphysema/Chronic obstructive pulmonary disease (COPD)
-
Other
-
Missing
Recipient Medical Urgency Status at Transplant (Shown for Recipients of Deceased
Donor Liver and Heart Donors Only)
The recipients' medical urgency status at the time of transplant is shown for
deceased donor livers and hearts only. The percentage of recipients in each of
status type (Livers: Status 1, 2A, 2B, 3, Temporarily Inactive; Hearts: Status
1, 1A, 1B, 2, Temporarily Inactive) is reported.
Beginning on February 27, 2002 candidates for liver transplants were classified
by MELD or PELD score rather than medical urgency status. However, Status 1 and
"temporarily inactive" candidates were still grouped by their respective
statuses. MELD and PELD scores were computed based on the candidates’
laboratory measures at the time of transplant. The following groups appear for
liver recipients after February 27, 2002: Status 1, MELD 6-10, MELD 11-20, MELD
21-30, MELD 31-40, PELD 10 or less, PELD 11-20, PELD 21-30, PELD greater than
30, and Temporarily Inactive.
Expanded Criteria Donors (Kidney Only)
The percentage of donors who met the expanded donor criteria is shown. Donors
that meet the expanded criteria are those over 60 years of age and those
between 50 and 59 years of age who either died of a stroke, had a history of
hypertension, or had a serum creatinine of greater than 1.5.
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Table 9. Counties Assigned to This DSA/OPO by HCFA by Year
Table 9 displays the HCFA-designated service area covered by each DSA/OPO.
Service areas are mapped by county borders and are re-assigned by HCFA on a
routine basis. Service areas are open for competition every 2 years. Any
DSA/OPO can request more or less service area during the "open season" every
two years. After the year 2000, these designations will last for a period of 4
years. HCFA negotiates with the DSAs/OPOs to reach the final assignment. This
table shows the changes in service area by county for this DSA/OPO during the
years for which data were available.
DSA/OPO Directories have been produced by HCFA during the years 2000 - 2002.
These directories document the designation of service areas by county. There is
no overlap of service areas in recent years. Beginning in 2003, assignments
reflect actual referral (from each hospital to each OPO) data reported by the
OPO/DSA. For counties with no referring hospitals, CMS service area data are
used.
Table 9 depicts a full listing of the counties served by any particular DSA/OPO
during each year listed. The information is shown by county with the
corresponding Federal Information Processing (FIPs) code, the county name, and
the state in which it resides. There is an "X" in the column for the year(s)
for which this county was served by this DSA/OPO, a blank space for the year(s)
that this county was not served by this DSA/OPO, and counties covered by more
than one DSA/OPO during a particular time period are designated in the table
with an "S" for "Split" counties.
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