|Molecular Weight of Agent||LMW|
|Specific Agent||Second hand smoke|
|Occupation|| Bar Workers|
|Outcome/Diagnosis||Respiratory symptoms, pulmonary function, and markers of inflammation|
|Activity Intervention|| Removal from exposure to second hand smoke (1 and 2 months)|
|Participation Rate||77 of 105 (73%) non-asthmatic and asthmatic nonsmoking bar workers.|
|Intervention Effectiveness||Changes from pre-legislation ban on smoking in public places to 1 and 2 month afterward as follows:
For asthmatic bar workers:
-Exhaled nitric oxide decreased from 34.3 parts per billion (ppb) to 27.4 ppb (0.8-fold change; 95% CI, 0.67 to 0.96 ppb; P = .04) 1 month after the ban.
-Juniper quality-of-life scores were significant improved from 80.2 to 87.5 points (7.3 points; 95% CI, 0.1 to 14.6 points; P = .049) 2 months after the ban.
Other statistically significant changes observed for all asthmatic and non-asthmatic bar workers combined in respiratory or sensory symptoms, FEV1, Serum cotinine levels, total white blood cell, and neutrophil count.