It was explained that the work place study entailed completing a respiratory questionnaire, an eye irritation index and having their immediate work place analyzed for CO. All diary information was gathered from September to the end of May in order to bypass the vacation months when subjects might be absent from the work place. Entry data included physical injuries, illness and lost days from work resulting from injuries or illness. Diaries were collected on the first and third Fridays of each month and data were coded and entered into a database and returned to the subject on the next collection date. buy flovent inhaler
The remaining 190 candidates were subdivided into two cadres, “nonsmoker” (61 men and 45 women) and “passive smoker” (43 men and 41 women). P&ssive smokers met the same criteria of nonsmokers, but were currently exposed to tobacco smoke at work and had been for at least one year. The nonsmokers said they were neither currently exposed nor had they been exposed in the past. To select subjects for this study, a stratified sampling technique was used. First, passive smokers and nonsmokers were stratified into one-year age groups by gender. Next, within each gender an age was randomly selected, and from that age group a passive smoker and a nonsmoker were randomly selected. Twenty-five passive smokers were matched with 25 nonsmokers from each gender group. A total of 100 subjects were used.