Appointments and SchedulesAU1NCT02108873
Factors Associated With Nonattendance at Scheduled Outpatient Appointments in a University General Hospital
An observational study of Appointments and Schedules and Outpatient Clinics, Hospital/Economics, run by Hospital Italiano de Buenos Aires at 1 site in Argentina.
Trial summary
Our objectives were to estimate the prevalence of nonattendance at outpatient offices, to identify the characteristics of appointments for which nonattendance was more likely to occur, and to generate a predictive model that could be applied to each appointment to estimate the probability of nonattendance. Read more about this study
- Who is it for?
- Ages 18 years and olderHealthy volunteers can take part
- Conditions the study is for
- Appointments and Schedules, Outpatient Clinics, Hospital/Economics
- How many people
- 10,000 participants
- Where
- 1 siteArgentina
- Study dates
- May 2014to Dec 2014
- 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
- Healthy volunteers accepted
- Adult, Older adult
Study population: We included all requested appointments (random consecutive sampling) between 2012 and 2013 (24 month). The sample was randomized to allocate a generation cohort (two-thirds of the sample) and a validation cohort (one third of the sample).
Who may be able to join
- Over 17 years.
- Adults who attended, did not attend and cancelled a scheduled appointment at the Outpatient care system at the Italian Hospital of Buenos Aires (HIBA)
Who cannot join
- The refusal to register or to the informed consent process.
Trial locations and contacts
1 site in 1 country.
Argentina1 site
Hospital Italiano de Buenos Aires
Capital Federal, Buenos Aires, C1199ABD
About this study
Our objectives were to estimate the prevalence of nonattendance at outpatient offices, to identify the characteristics of appointments for which nonattendance was more likely to occur, and to generate a predictive model that could be applied to each appointment to estimate the probability of nonattendance.
Read the detailed description
Nonattendance at scheduled appointments at outpatient clinics is a common problem in general medical practice, representing a significant cost to the health care system, and resulting in disruption of daily work planning.Nonattendance at medical appointments has consequences not only for doctors (as it requires a greater use of resources and time), but also for patients, because there may be deterioration in the quality of care, and dissatisfaction associated with delays in obtaining a new appointment.
Previous studies have reported that nonattendance at scheduled appointments is most frequently associated with those patients attending follow-up appointments, generally those assigned to another professional, those with appointments on Fridays, and those with appointments assigned 1 - 2 weeks in advance. Nonattendance was also associated with younger patient age, greater psychological problems, and lower socioeconomic status.Furthermore, in patients with chronic diseases, the nonattendance rate was also reported to be lower. Clinical patient characteristics can be important predictors of nonattendance, but they required high quality electronic health records to predict nonattendance accurately In the United States and Europe, the nonattendance rate is estimated to be between 6.5%-55%; there is little evidence regarding nonattendance in Latin America. Many studies have described the prevalence and impact of nonattendance at scheduled medical appointments, and possible strategies to decrease the nonattendance rate. However, few studies have utilized the characteristics associated with nonattendance for building predictive models, which might better identify those patients who may not attend a scheduled appointment
- Keywords
- Appointments and Schedules, Outpatient Clinics, Hospital/economics
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 |
|---|---|---|
| Retrospective Cohort | Adult patients who had scheduled an appointment for outpatient primary care. Patients were divided into two groups, including those who attended their scheduled appointment and those who missed it. |
What is being measured
The primary outcome is the main question the study is designed to answer.
Prevalence of non attendance, attendance and cancellation
Characterize, describe and compare the clinical and administrative characteristics of outpatients who didn't attend, attended and cancelled an appointment in internal medicine/primary health care, clinical subspecialties and surgical specialties.
Measured: Cohort study of 24 month
Secondary outcomes (1)
Clinical and administrative characteristics
Characterize, describe and compare the clinical and administrative characteristics of outpatients who didn't attend, attended and cancelled an appointment in internal medicine/primary health care, clinical subspecialties and surgical specialties.
Measured: Cohort study of 24 month
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted9 Apr 2014 (estimated)
- Study startMay 2014
- Primary completionSep 2014
- Study completionDec 2014
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Appointments and SchedulesStudies 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
- Observational model
- Cohort
- Time perspective
- Retrospective
- Enrolment
- 10,000 participants (actual)
Sponsor and investigators
- Lead sponsor
- Hospital Italiano de Buenos Aires
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Diego Hernan Giunta, MD, Hospital Italiano de Buenos Aires
- Investigators
- Diego H Giunta, MD, Principal investigator, Hospital Italiano de Buenos Aires
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT02108873
- Sponsor's protocol ID
- 2262
- Acronym
- AU1
- Status last verified
- Mar 2015
- First submitted
- 6 Apr 2014
- Last updated
- 24 Mar 2015
- Results posted
- No
- Data monitoring committee
- No
Study at a glance
From the registry record, last updated by the sponsor on 24 Mar 2015. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Factors Associated With Nonattendance at Scheduled Outpatient Appointments in a University General Hospital
- ClinicalTrials.gov ID
- NCT02108873
- Acronym / sponsor ID
- AU1 / 2262
- Keywords
- Appointments and Schedules, Outpatient Clinics, Hospital/economics
- Study type
- Observational
- Recruitment status
- Completed
- Enrolment
- 10,000 participants (actual)
- Lead sponsor
- Hospital Italiano de Buenos AiresUniversity, hospital or other
- Study start
- May 2014
- Primary completion
- Sep 2014 (actual)
- Study completion
- Dec 2014 (actual)
- First posted
- 9 Apr 2014 (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.
Our objectives were to estimate the prevalence of nonattendance at outpatient offices, to identify the characteristics of appointments for which nonattendance was more likely to occur, and to generate a predictive model that could be applied to each appointment to estimate the probability of nonattendance.
Detailed description
Nonattendance at scheduled appointments at outpatient clinics is a common problem in general medical practice, representing a significant cost to the health care system, and resulting in disruption of daily work planning.Nonattendance at medical appointments has consequences not only for doctors (as it requires a greater use of resources and time), but also for patients, because there may be deterioration in the quality of care, and dissatisfaction associated with delays in obtaining a new appointment.
Previous studies have reported that nonattendance at scheduled appointments is most frequently associated with those patients attending follow-up appointments, generally those assigned to another professional, those with appointments on Fridays, and those with appointments assigned 1 - 2 weeks in advance. Nonattendance was also associated with younger patient age, greater psychological problems, and lower socioeconomic status.Furthermore, in patients with chronic diseases, the nonattendance rate was also reported to be lower. Clinical patient characteristics can be important predictors of nonattendance, but they required high quality electronic health records to predict nonattendance accurately In the United States and Europe, the nonattendance rate is estimated to be between 6.5%-55%; there is little evidence regarding nonattendance in Latin America. Many studies have described the prevalence and impact of nonattendance at scheduled medical appointments, and possible strategies to decrease the nonattendance rate. However, few studies have utilized the characteristics associated with nonattendance for building predictive models, which might better identify those patients who may not attend a scheduled appointment
Study design
- Observational model
- Cohort
- Time perspective
- Retrospective
- Number of arms
- 1
| Arm | Type | Receives |
|---|---|---|
| Retrospective Cohort | – | –Adult patients who had scheduled an appointment for outpatient primary care. Patients were divided into two groups, including those who attended their scheduled appointment and those who missed it. |
Who may qualify
- Ages
- 18 years and older
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Adult, Older adult
- Study population
- We included all requested appointments (random consecutive sampling) between 2012 and 2013 (24 month). The sample was randomized to allocate a generation cohort (two-thirds of the sample) and a validation cohort (one third of the sample).
Key inclusion criteria (2 listed)
- Over 17 years.
- Adults who attended, did not attend and cancelled a scheduled appointment at the Outpatient care system at the Italian Hospital of Buenos Aires (HIBA)
Key exclusion criteria (1 listed)
- The refusal to register or to the informed consent process.
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
Prevalence of non attendance, attendance and cancellation
Time frame: Cohort study of 24 month
Characterize, describe and compare the clinical and administrative characteristics of outpatients who didn't attend, attended and cancelled an appointment in internal medicine/primary health care, clinical subspecialties and surgical specialties.
1 secondary outcome
Clinical and administrative characteristics
Time frame: Cohort study of 24 month
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 24 Mar 2015.
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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.
Diego H Giunta, MD principal investigator
Hospital Italiano de Buenos Aires
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 Appointments and Schedules and Outpatient Clinics, Hospital/Economics, run by Hospital Italiano de Buenos Aires at 1 site in Argentina.
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 2 inclusion and 1 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 24 Mar 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 Argentina. 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.
What does the primary outcome measure?
Prevalence of non attendance, attendance and cancellation (time frame: Cohort study of 24 month). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
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 24 Mar 2015.