Smoke-free Legislation in England and Hospital Admissions for Respiratory Tract Infections Among Children
Trial Snapshot
- Phase
- Not Applicable
- Status
- Completed
- Sponsor
- University of Edinburgh
- Enrollment
- 1,660,652
- Locations
- 1
- Primary Endpoint
- rate of unplanned hospital admissions for acute RTIs
Study Overview
Brief Summary
The purpose of this study is to investigate whether there has been a change in the number of hospital admissions for respiratory tract infections among children following the July 2007 introduction of a ban on smoking in public places in England.
Detailed Description
Primary research question:
Has the rate of hospital admissions for acute respiratory tract infections (RTIs) among children aged 14 years and under decreased following the 1 July 2007 introduction of a ban on smoking in public places in England?
Study design:
Interrupted time series design
Study population:
Study Design
- Study Type
- Observational
- Observational Model
- Ecologic Or Community
- Time Perspective
- Retrospective
Eligibility Criteria
- Ages
- — to 14 Years (Child)
- Sex
- All
- Accepts Healthy Volunteers
- Yes
Inclusion Criteria
- •age 0-14 years
- •living in England
Exclusion Criteria
- •hospital admissions with primary diagnosis of asthma
- •transfers between hospitals
Outcomes
Primary Outcomes
rate of unplanned hospital admissions for acute RTIs
Time Frame: up to 12 years
The primary outcome is the rate of unplanned hospital admissions for acute RTIs. The following International Classification of Diseases (ICD)-10 codes will be used to identify acute RTIs: URTIs: A37, H66-H67, J02.0, J00-J06, J09-J11 (excluding J10.0, J11.0) LRTIs: J10.0, J11.0, J12-J18, J20-J22, J40-J42 Only unplanned hospitalisations where either a primary or first secondary diagnosis of an acute RTI is recorded, will be included. Admissions with a primary diagnosis of asthma are excluded to prevent overlap with a previous study assessing the impact of the English smoking ban on paediatric asthma hospitalisations. Transfers between hospitals following initial admission will not be included. As a unique patient identifier is not available in the source database, it is not possible to distinguish between first and subsequent admissions for individual children.
Secondary Outcomes
- rate of unplanned hospital admissions for acute upper RTIs(up to 12 years)
- rate of unplanned hospital admissions for acute lower RTIs(up to 12 years)
Investigators
Jasper Been
Dr.
University of Edinburgh