View clinical trials related to Secondhand Smoke.
Filter by:This is a school- and family-based prospective trial among Primary/Grade 2-4 (P2-4) students in randomly selected 12 schools in Hong Kong. This study will assess the intervention effects on children's exposure to environmental tobacco smoke (including SHS and THS at home, SHS at home from neighbours and SHS outside home), children's SHS-related knowledge and attitude, intention to smoke, respiratory symptoms, parents' smoking cessation, and family happiness.
Secondhand smoke (SHS) exposure is a significant public health problem in that it both harms children and is widely prevalent, affecting more than 40% of US children. Tobacco cessation quitlines are effective in helping smokers quit, but few smokers make use of their services. Electronic health record-based systems that automate referral of interested parents to quitlines through pediatric settings may increase the proportion of smokers who successfully enroll in treatment.
Exposure to secondhand tobacco smoke (SHS) is associated with diverse health effects in nonsmokers. Flight attendants (FA) who worked on commercial aircraft before the ban on tobacco smoking (exposed FAs) had high, long-term levels of occupational exposure to SHS and are a unique population for the study of long-term health effects of chronic exposure to SHS. In previous studies, we have shown that many never-smoking SHS-exposed FAs to have curvilinear flow-volume loops, decreased airflow at mid- and low-lung volumes, and static air trapping (elevated residual volume to total lung capacity ratio [RV/TLC]), abnormalities that are not diagnostic of overt Chronic Obstructive Pulmonary Disease (COPD), but do implicate the presence of an obstructive ventilatory defect, and are consistent with what has been recently described as preserved ratio impaired spirometry (PRISm). The main objective of the study is to determine the effect of a bronchodilator to counter the physiologic abnormalities that are observed in the population of never-smoking SHS-exposed FAs as both proof of concept of the presence of an obstructive lung disease and as a possible therapeutic option to counteract the adverse respiratory effects of chronic exposure to SHS.
The overall aim of the current study is to determine if the use of nicotine containing products by caregivers who smoke and who are not interested in quitting, is effective in reducing children's secondhand smoke exposure.
The overall aim of the current study is to determine if the use of nicotine containing products by caregivers who smoke and who are not interested in quitting, is effective in reducing children's secondhand smoke exposure.