Secondhand Smoke ExposureNCT07144982
Perioperative Counselling and Parental Awareness of Second-hand Smoke
An observational study of Secondhand Smoke Exposure, run by University of Liege at 1 site in Belgium.
Trial summary
In a single-centre observational before-after study (n=31 parental smokers), a standardized ~15-minute tobacco-counselling intervention delivered during the paediatric ambulatory pathway significantly increased parental awareness of secondhand-smoke harms (median total score 34→46; p=0.0026). Read more about this study
- Who is it for?
- Ages 18 years and older
- Conditions the study is for
- Secondhand Smoke Exposure
- What is being tested?
- Counselling session
- Type of treatment
- Lifestyle or therapy programme
- How many people
- 31 participants
- Where
- 1 siteBelgium
- Study dates
- 7 Nov 2024to 27 Mar 2025
- 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
Study population: Eligible participants were adult parents who declared current tobacco use and were present at their child's ambulatory surgical visit. Exclusions included parents absent on the day of surgery, procedures postponed, or explicit refusal to participate.
Who may be able to join
- adult parents who declared current tobacco use and were present at their child's ambulatory surgical visit
Who cannot join
- parents absent on the day of surgery
- procedures postponed
- explicit refusal to participate
Trial locations and contacts
1 site in 1 country.
About this study
Official title: Impact of a Brief Perioperative Counselling Session on Parental Awareness of Passive Smoking in Paediatric Ambulatory Surgery: a Single-centre Observational Study
In a single-centre observational before-after study (n=31 parental smokers), a standardized ~15-minute tobacco-counselling intervention delivered during the paediatric ambulatory pathway significantly increased parental awareness of secondhand-smoke harms (median total score 34→46; p=0.0026). Item-level gains were greatest for perceived anaesthetic risk and misconceptions about tertiary/indirect exposure. Session acceptability was high, but self-reported behavioural change at 30 days was limited. The perioperative consultation is a feasible "teachable moment"; integration with visual aids, objective exposure measures, structured cessation referral and longitudinal follow-up should be considered to translate awareness into sustained exposure reduction.
- Conditions
- Secondhand Smoke Exposure
- Being tested
- Counselling session
- Keywords
- Tobacco Smoke Pollution, Child, Secondhand Smoking, Patient Education, Perioperative Care
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Counselling sessionBehavioural
Each enrolled parent received a single, standardized counselling session (~15 minutes) delivered in the ambulatory unit by a certified tobacco counsellor. The session followed a fixed script and covered: (1) types of tobacco smoke exposure (primary, secondary and tertiary), (2) health consequences for children with emphasis on perioperative respiratory and anaesthetic risks, (3) practical measures to reduce household exposure (smoke-free home/car rules, behavioural strategies), and (4) brief advice on initial cessation steps and referral options. Structured handouts and signposting to support services were offered when appropriate.
| Study group | Role | What they receive |
|---|---|---|
| Provide additional information about the group or cohort, including a description of any interventio | Eligible participants were adult parents who declared current tobacco use and were present at their child's ambulatory surgical visit. Exclusions included parents absent on the day of surgery, procedures postponed, or explicit refusal to participate. Receives: Behavioral: Counselling session |
What is being measured
The primary outcome is the main question the study is designed to answer.
60-points score parental awareness
The primary outcome was change in parental awareness measured by a six-item questionnaire (each item scored 0-10; total range 0-60) administered at baseline (arrival), immediately after counselling, and at 30 days by telephone.
Measured: 4 hours
Secondary outcomes (1)
Smoking changes
Self-reported changes in smoking behaviour at 30 days
Measured: 30 days
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted28 Aug 2025
- Study start7 Nov 2024
- Primary completion27 Mar 2025
- Study completion27 Mar 2025
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 Secondhand Smoke ExposureStudies 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
- Prospective
- Enrolment
- 31 participants (actual)
Sponsor and investigators
- Lead sponsor
- University of Liege
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Michele Carella, University of Liege
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT07144982
- Sponsor's protocol ID
- B7072024000085
- Status last verified
- Aug 2025
- First submitted
- 14 Aug 2025
- Last updated
- 28 Aug 2025
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- No
Publications
Hallet C, Prijs A, Le Jeune L, Beck F, Bonhomme VL, Carella M. Impact of a brief peri-operative counselling session on parental awareness of passive smoking in paediatric ambulatory surgery: A single-centre observational study. Eur J Anaesthesiol Intensive Care. 2026 May 22;5(3):e0121. doi: 10.1097/EA9.0000000000000121. eCollection 2026 Jun.
PubMed 42244834
Study at a glance
From the registry record, last updated by the sponsor on 28 Aug 2025. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Impact of a Brief Perioperative Counselling Session on Parental Awareness of Passive Smoking in Paediatric Ambulatory Surgery: a Single-centre Observational Study
- ClinicalTrials.gov ID
- NCT07144982
- Acronym / sponsor ID
- B7072024000085
- Conditions
- Secondhand Smoke Exposure
- Keywords
- Tobacco Smoke Pollution, Child, Secondhand Smoking, Patient Education, Perioperative Care
- Study type
- Observational
- Recruitment status
- Completed
- Enrolment
- 31 participants (actual)
- Lead sponsor
- University of LiegeUniversity, hospital or other
- Study start
- 7 Nov 2024 (actual)
- Primary completion
- 27 Mar 2025 (actual)
- Study completion
- 27 Mar 2025 (actual)
- First posted
- 28 Aug 2025 (actual)
- 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.
In a single-centre observational before-after study (n=31 parental smokers), a standardized ~15-minute tobacco-counselling intervention delivered during the paediatric ambulatory pathway significantly increased parental awareness of secondhand-smoke harms (median total score 34→46; p=0.0026). Item-level gains were greatest for perceived anaesthetic risk and misconceptions about tertiary/indirect exposure. Session acceptability was high, but self-reported behavioural change at 30 days was limited. The perioperative consultation is a feasible "teachable moment"; integration with visual aids, objective exposure measures, structured cessation referral and longitudinal follow-up should be considered to translate awareness into sustained exposure reduction.
Study design
- Observational model
- Cohort
- Time perspective
- Prospective
- Number of arms
- 1
| Arm | Type | Receives |
|---|---|---|
| Provide additional information about the group or cohort, including a description of any interventio | – | Behavioral: Counselling sessionEligible participants were adult parents who declared current tobacco use and were present at their child's ambulatory surgical visit. Exclusions included parents absent on the day of surgery, procedures postponed, or explicit refusal to participate. |
Who may qualify
- Ages
- 18 years and older
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
- Study population
- Eligible participants were adult parents who declared current tobacco use and were present at their child's ambulatory surgical visit. Exclusions included parents absent on the day of surgery, procedures postponed, or explicit refusal to participate.
Key inclusion criteria (1 listed)
- adult parents who declared current tobacco use and were present at their child's ambulatory surgical visit
Key exclusion criteria (3 listed)
- parents absent on the day of surgery
- procedures postponed
- explicit refusal to participate
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| Counselling sessionEach enrolled parent received a single, standardized counselling session (~15 minutes) delivered in the ambulatory unit by a certified tobacco counsellor. The session followed a fixed script and covered: (1) types of tobacco smoke exposure (primary, secondary and tertiary), (2) health consequences for children with emphasis on perioperative respiratory and anaesthetic risks, (3) practical measures to reduce household exposure (smoke-free home/car rules, behavioural strategies), and (4) brief advice on initial cessation steps and referral options. Structured handouts and signposting to support services were offered when appropriate. | Behavioural | Provide additional information about the group or cohort, including a description of any interventio |
Primary outcome
60-points score parental awareness
Time frame: 4 hours
The primary outcome was change in parental awareness measured by a six-item questionnaire (each item scored 0-10; total range 0-60) administered at baseline (arrival), immediately after counselling, and at 30 days by telephone.
1 secondary outcome
Smoking changes
Time frame: 30 days
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 28 Aug 2025.
- Derived from this study: PubMed 42244834Hallet C, Prijs A, Le Jeune L, Beck F, Bonhomme VL, Carella M. Impact of a brief peri-operative counselling session on parental awareness of passive smoking in paediatric ambulatory surgery: A single-centre observational study. Eur J Anaesthesiol Intensive Care. 2026 May 22;5(3):e0121. doi: 10.1097/EA9.0000000000000121. eCollection 2026 Jun.
- Individual participant dataSharing planned: No
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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.
The record lists no contact. Use the official record to reach the sponsor.
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 Secondhand Smoke Exposure, run by University of Liege at 1 site in Belgium.
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 3 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 28 Aug 2025. 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 Belgium. 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?
60-points score parental awareness (time frame: 4 hours). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT07144982, 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 28 Aug 2025.