Smoke-free Legislation in England and Hospital Admissions for Respiratory Tract Infections Among Children
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 1,660,652
- 试验地点
- 1
- 主要终点
- rate of unplanned hospital admissions for acute RTIs
研究概览
简要总结
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.
详细描述
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:
研究设计
- 研究类型
- Observational
- 观察模型
- Ecologic Or Community
- 时间视角
- Retrospective
入排标准
- 年龄范围
- — 至 14 Years（Child）
- 性别
- All
- 接受健康志愿者
- 是
入选标准
- •age 0-14 years
- •living in England
排除标准
- •hospital admissions with primary diagnosis of asthma
- •transfers between hospitals
结局指标
主要结局
rate of unplanned hospital admissions for acute RTIs
时间窗: 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.
次要结局
- 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)
研究者
Jasper Been
Dr.
University of Edinburgh