|Molecular Weight of Agent||LMW|
|Specific Agent||Second hand smoke|
|Occupation|| Bar and restaurant workers|
|Outcome/Diagnosis||Respiratory and sensory irritation symptoms and respiratory function|
|Activity Intervention|| Removal from exposure to second hand smoke (3 months).|
|Participation Rate||80 of 198 (40%) non-smoking bar and restaurant workers.|
|Intervention Effectiveness||Changes in bar and restaurant workers from pre-legislation to 3 months after the new legislation bans smoking in these worksites:|
1.Respiratory and Sensory irritation symptoms
a.Respiratory symptoms reduced from 57.5% to 28.7% (p<0.001).
b.Cough, wakes during sleep due to cough, tightness in chest, dyspnoea on exertion and rest were statistical significantly declined from 20.2%, 31.6%, 17.5%, 41.2%, and 21.2% to 7.1%, 8.8%, 7.5%, 16.2%, and 5%, respectively.
c.Sensory irritation symptoms on at least one symptom, red eyes, sneezing, and scratchy throat were decreased from 86.3%, 58%, 58.2%, and 53.1% to 37.5%, 20%, 26.2%, and 17.7%, respectively.
a.FVC significantly improved from 88% to 96%.