1. Smoking, Respiratory Symptoms, and Diseases
Lindström Mai , SRN, Jönsson Elsy , MSc, Kotaniemi Jyrki , MD, Lundbäck Bo , MD, PhD 
CHEST 
Volume 119, Issue 3, Pages (March 2001)
DOI: /chest
Copyright © 2001 The American College of Chest Physicians Terms and Conditions

2. Figure 1
The study area, showing the geographic position of Norrbotten, Sweden, and Finnish Lapland.
CHEST  , DOI: ( /chest )
Copyright © 2001 The American College of Chest Physicians Terms and Conditions

3. Figure 2
The prevalence (in percentage) of chronicproductive cough and wheezing during the last 12 months, respectively, in different smoking categories among men and women in Northern Sweden(SW) and Northern Finland (FIN). cig = cigarettes.
CHEST  , DOI: ( /chest )
Copyright © 2001 The American College of Chest Physicians Terms and Conditions

4. Figure 3
Risks (ORs) with 95% confidence intervals forchronic productive cough and wheezing during the last 12 months, respectively, in relation to a family history (FH) of obstructiveairway disease and different smoking categories calculated by multiplelogistic regression analysis after adjustment for age, gender, socioeconomic group, and country. n-s = nonsmokers;ex-s = ex-smokers; see Figure 2 legend for expansion of abbreviation.
CHEST  , DOI: ( /chest )
Copyright © 2001 The American College of Chest Physicians Terms and Conditions