The Relationship Between the ASA Score Determined by Operating Room Nurses and Intubation Duration

August 23, 2026 updated by: Tülin KURT ALKAN, Zonguldak Bulent Ecevit University
The objective of this study is to The objective of this study was to ascertain the extent to which operating room nurses assign ASA scores and to assess the reliability of these scores in predicting significant risk factors, including the necessity for mechanical ventilation in patients.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Completed

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Detailed Description

The present research is to be conducted as a prospective observational study. The present prospective observational study is to be conducted over a 3-month period between April 1, 2025, and July 1, 2025, at a single centre, with the involvement of 36 nurses, 36 anesthesiologists (12 operating tables), and 80 patients working in the operating room of Zonguldak Atatürk State Hospital, who evaluate patients in a pre- and post-operative assessment clinic. The sociodemographic information of the nurses and anesthesiologists will be recorded using "Personal Information Form 1" and "Personal Information Form 2". Prior to undergoing surgery, patients' ASA scores and sociodemographic information will be evaluated by operating room nurses and anesthesiologists, who will record this data using "Personal Information Form 3". Patients will be followed up until they are discharged from the clinic, and their mechanical ventilation needs will be recorded. The ASA scores assigned by operating room nurses and anesthesiologists will be analysed in relation to the necessity for mechanical ventilation.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Observational

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
80

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • Turkey (Türkiye)
    • Zonguldak Province
      • Zonguldak, Zonguldak Province, Turkey (Türkiye), 67100
        • Zonguldak Atatürk State Hospital

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

  • Adult
  • Older Adult

Accepts Healthy Volunteers

Yes

Sampling Method

Probability Sample

Study Population

This study was conducted at Zonguldak Atatürk State Hospital between 1 April and 1 July 2025. The operating room was staffed by 36 nurses, 36 anesthesiologists (across 12 operating tables) and 80 patients. A review of extant research on the subject was conducted, and a G Power analysis was subsequently performed. This analysis indicated that, in order to achieve 80% power within a 95% confidence interval for an effect size of d=0.8, it is necessary to include 80 individuals meeting the inclusion criteria in the study.

Description

Inclusion Criteria:

  • The person must be 18 years of age or older,
  • Must volunteer to participate in the research.

Exclusion Criteria:

  • The person must be 18 years of age or younger,
  • Not willing to participate in the study,
  • The person must be in ASA VI class,
  • Death must have been considered during surgery.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

Cohorts and Interventions

Group / Cohort

Group / Cohort

A group or subgroup of participants in an observational study that is assessed for biomedical or health outcomes.
1

Inclusion Criteria for Volunteers in the Study:

  • The person must be 18 years of age or older,
  • The person must be willing to participate in the study.

Exclusion Criteria for Volunteers in the Study:

  • The person must be 18 years of age or younger,
  • The person must not be a volunteer to participate in the study,
  • The person must be classified as ASA VI,
  • The person must have died during surgery.

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Determining the sociodemographic information of the nurse using "Personal Information Form 1"
Time Frame: From April 2025 to June 2025
The nurse's assessment is a nine-item form that includes information such as age, gender, professional work experience, experience working in an operating room, work style, average weekly working hours, income level, and whether or not they have received ASA Physical Status Classification training.
From April 2025 to June 2025
Determining the sociodemographic information of anesthesiologists using "Personal Information Form 3"
Time Frame: From April 2025 to June 2025
This is an 8-item form that includes the anesthesiologist's age, gender, professional work experience, operating room experience, work style, average weekly working hours, income level, and whether they have received ASA Physical Status Classification training.
From April 2025 to June 2025
Determining the sociodemographic information of the patient's using "Personal Information Form 3"
Time Frame: From April 2025 to June 2025
This is an 8-item form that includes the patient's age, gender, chronic diseases, previous surgical procedures, Glasgow Coma Scale score, ASA class score, need for mechanical ventilation, and number of days the patient has been intubated.
From April 2025 to June 2025

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Comparing patients' ASA scores with their need for mechanical ventilation
Time Frame: From April 2025 to June 2025
The ASA scores given to patients by operating room nurses and anesthesiologists will be compared with the likelihood of them needing mechanical ventilation. For analyzing the differences between two independent groups with a normal distribution, an independent t-test will be applied; for analyzing the differences between more than two independent groups, an ANOVA test will be applied.
From April 2025 to June 2025

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Zonguldak Bulent Ecevit University

Collaborators

Collaborators

An organization other than the sponsor that provides support for a clinical study. This support may include activities related to funding, design, implementation, data analysis, or reporting.
Zonguldak Ataturk State Hospital

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
April 1, 2025

Primary Completion (Actual)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
July 1, 2025

Study Completion (Actual)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
July 1, 2025

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
January 12, 2026

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
January 25, 2026

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
February 3, 2026

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
August 26, 2026

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
August 23, 2026

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
August 1, 2026

More Information

Terms related to this study

Keywords

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • 2025-SBB-0079

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

IPD Plan Description

Patients' personal information was not included in the study and will not be shared.

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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