Total cell concentration (10⁶/L) in relation to age and smoking history in BAL fluid from current smokers, in three different groups according to age and smoking history expressed as pack-years (PY).

<p>Total cell concentration (10⁶/L) in relation to age and smoking history in BAL fluid from current smokers, in three different groups according to age and smoking history expressed as pack-years (PY).</p

Relation between cell viability in BAL fluid and age from current smokers and ex-smokers.

<p>Relation between cell viability in BAL fluid and age from current smokers and ex-smokers.</p

Relation between cell concentration and age in BAL fluid from current smokers and ex-smokers.

<p>Relation between cell concentration and age in BAL fluid from current smokers and ex-smokers.</p

Cell concentration (10⁶/L) of the various inflammatory cells in BAL fluid in current- smokers (CS) and never-smokers (NS) and ex-smokers (ES).

<p>Mean and standard deviation are given.</p

Relation between percentage of recovered fluid in BAL and age from current smokers and ex-smokers.

<p>Relation between percentage of recovered fluid in BAL and age from current smokers and ex-smokers.</p

Descriptive statistics of BAL findings in current smoking subjects.

<p>Descriptive statistics of BAL findings in current smoking subjects.</p

Characteristics of the study subjects.^*

*<p>Values are expressed as mean±SD and range within brackets.</p>a<p>p<0.0001 “Current Smokers” vs. “Ex-smokers”.</p>b<p>p<0.0001 “Current Smokers” vs. “Never Smokers”.</p>c<p>p<0.0001 “Ex-smokers” vs. “Never Smokers”.</p><p>N.A. not applicable.</p

Descriptive statistics of bronchoalveolar lavage fluid findings in healthy never-smoking subjects.

<p>Descriptive statistics of bronchoalveolar lavage fluid findings in healthy never-smoking subjects.</p

Bronchoalveolar lavage fluid findings (y-axis) during the calendar month (x-axis) in healthy never-smoking subjects.

<p>Bronchoalveolar lavage fluid findings (y-axis) during the calendar month (x-axis) in healthy never-smoking subjects.</p

Comparison of bronchoalveolar lavage findings between current smoking, and ex-smoking subjects divided in men and women.

*<p>P<0.05.</p>***<p>p<0.001.</p