HypertensionNCT00012623
Improving Service Delivery Through Access Points
An observational study of Hypertension and Angina, run by US Department of Veterans Affairs at 1 site in United States.
Trial summary
CBOCs represent one of VA's main managed care strategies for shifting the focus of care from the inpatient to the outpatient setting and for improving the health of our nation's veterans. Read more about this study
- Who is it for?
- Ages 18 years and older
- Conditions the study is for
- Hypertension, Angina, Diabetes
- How many people
- 39,481 participants
- Where
- 1 siteUnited States
- Study dates
- Start not givento Mar 2002
- Phase
- Observational
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 years and older
- All sexes
- No healthy volunteers
- Adult, Older adult
Who may be able to join
- Subjects must live in the catchment area of a specified CBOC and have been diagnosed with a tracer condition.
Who cannot join
None listed.
Trial locations and contacts
1 site in 1 country.
United States1 site
Central Arkansas Veterans Healthcare System Eugene J. Towbin Healthcare Center, Little Rock, AR
No. Little Rock, Washington, 72114-1706
About this study
CBOCs represent one of VA's main managed care strategies for shifting the focus of care from the inpatient to the outpatient setting and for improving the health of our nation's veterans. Hypothesis-driven research is critically needed to test the basic assumptions motivating the expansion of CBOCs throughout the VA health care system.
Read the detailed description
Background:
CBOCs represent one of VA's main managed care strategies for shifting the focus of care from the inpatient to the outpatient setting and for improving the health of our nation's veterans. Hypothesis-driven research is critically needed to test the basic assumptions motivating the expansion of CBOCs throughout the VA health care system.
Objectives:
The purpose was to determine how increased geographic access to primary care services affects service use and costs. Two specific aims addressed were: 1) to determine how CBOCs impact the service use of all existing users and existing users with the following ambulatory care sensitive conditions (ACSC): alcohol dependence, angina, chronic obstructive pulmonary disease (COPD), depression, diabetes and hypertension; and 2) to describe how CBOCs affect the workload and costs of the VA health care system from the VISN's perspective.
Methods:
A quasi-experimental pre-post study design with intervention and reference groups was employed to compare service use and costs in the 18 months following the establishment of a new CBOC. Fifteen CBOCs from 11 VISNs were included in the analysis. For specific aim 1, the intervention group was defined as existing users in the catchment area of a new CBOC and the reference group was defined as matched existing users outside CBOC catchment areas. Multivariate statistical regression analyses were used to estimate the impact of residing within the CBOC catchment area on use and cost in the post-period, controlling for patient casemix and use/cost in the 18 month pre-period. For specific aim 2, the intervention group was defined as zip codes in the catchment area of a new CBOC and the reference group was defined as matched zip codes outside CBOC catchment areas. Average use and costs for all users, existing users and new users from intervention zip codes and reference zip codes were compared.
Status:
Complete.
- Conditions
- Hypertension, Angina, Diabetes
- Medical subject headings
- Hypertension, Angina Pectoris, Diabetes Mellitus
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
| Study group | Role | What they receive |
|---|---|---|
| Group 1 | Not described |
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted16 Mar 2001 (estimated)
- Study completionMar 2002
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (1)Papers the sponsor has linked to this study.
- Other trials for HypertensionStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Observational
- Time perspective
- Retrospective
- Enrolment
- 39,481 participants (estimated)
Sponsor and investigators
- Lead sponsor
- US Department of Veterans Affairs
- Sponsor type
- US federal agency
- Responsible party
- Sponsor
- Investigators
- John C. Fortney, PhD, Principal investigator, Central Arkansas Veterans Healthcare System Eugene J. Towbin Healthcare Center, Little Rock, AR
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT00012623
- Sponsor's protocol ID
- ACC 97-068
- Status last verified
- Apr 2015
- First submitted
- 14 Mar 2001
- Last updated
- 7 Apr 2015
- Results posted
- No
- Data monitoring committee
- No
Publications
Fortney JC, Maciejewski ML, Warren JJ, Burgess JF Jr. Does improving geographic access to VA primary care services impact patients' patterns of utilization and costs? Inquiry. 2005 Spring;42(1):29-42. doi: 10.5034/inquiryjrnl_42.1.29.
PubMed 16013585
Study at a glance
From the registry record, last updated by the sponsor on 7 Apr 2015. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Improving Service Delivery Through Access Points
- ClinicalTrials.gov ID
- NCT00012623
- Acronym / sponsor ID
- ACC 97-068
- Conditions
- Hypertension, Angina, Diabetes
- Study type
- Observational
- Recruitment status
- Completed
- Enrolment
- 39,481 participants (estimated)
- Lead sponsor
- US Department of Veterans AffairsUS federal agency
- Study completion
- Mar 2002 (actual)
- First posted
- 16 Mar 2001 (estimated)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
CBOCs represent one of VA's main managed care strategies for shifting the focus of care from the inpatient to the outpatient setting and for improving the health of our nation's veterans. Hypothesis-driven research is critically needed to test the basic assumptions motivating the expansion of CBOCs throughout the VA health care system.
Detailed description
Background:
CBOCs represent one of VA's main managed care strategies for shifting the focus of care from the inpatient to the outpatient setting and for improving the health of our nation's veterans. Hypothesis-driven research is critically needed to test the basic assumptions motivating the expansion of CBOCs throughout the VA health care system.
Objectives:
The purpose was to determine how increased geographic access to primary care services affects service use and costs. Two specific aims addressed were: 1) to determine how CBOCs impact the service use of all existing users and existing users with the following ambulatory care sensitive conditions (ACSC): alcohol dependence, angina, chronic obstructive pulmonary disease (COPD), depression, diabetes and hypertension; and 2) to describe how CBOCs affect the workload and costs of the VA health care system from the VISN's perspective.
Methods:
A quasi-experimental pre-post study design with intervention and reference groups was employed to compare service use and costs in the 18 months following the establishment of a new CBOC. Fifteen CBOCs from 11 VISNs were included in the analysis. For specific aim 1, the intervention group was defined as existing users in the catchment area of a new CBOC and the reference group was defined as matched existing users outside CBOC catchment areas. Multivariate statistical regression analyses were used to estimate the impact of residing within the CBOC catchment area on use and cost in the post-period, controlling for patient casemix and use/cost in the 18 month pre-period. For specific aim 2, the intervention group was defined as zip codes in the catchment area of a new CBOC and the reference group was defined as matched zip codes outside CBOC catchment areas. Average use and costs for all users, existing users and new users from intervention zip codes and reference zip codes were compared.
Status:
Complete.
Study design
- Time perspective
- Retrospective
- Number of arms
- 1
| Arm | Type | Receives |
|---|---|---|
| Group 1 | – | – |
Who may qualify
- Ages
- 18 years and older
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (1 listed)
- Subjects must live in the catchment area of a specified CBOC and have been diagnosed with a tracer condition.
Key exclusion criteria (0 listed)
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Primary outcome
Not reported in the source record.
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 7 Apr 2015.
- Results publication: PubMed 16013585Fortney JC, Maciejewski ML, Warren JJ, Burgess JF Jr. Does improving geographic access to VA primary care services impact patients' patterns of utilization and costs? Inquiry. 2005 Spring;42(1):29-42. doi: 10.5034/inquiryjrnl_42.1.29.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
John C. Fortney, PhD principal investigator
Central Arkansas Veterans Healthcare System Eugene J. Towbin Healthcare Center, Little Rock, AR
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
An observational study of Hypertension and Angina, run by US Department of Veterans Affairs at 1 site in United States.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 1 inclusion and 0 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 7 Apr 2015. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT00012623, which also lists 1 linked publication.
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 7 Apr 2015.