Figure 2From: Persistent Chlamydia Pneumoniae serology is related to decline in lung function in women but not in men. Effect of persistent Chlamydia pneumoniae infection on lung function Association between Chlamydia pneumoniae (C pn) serology and change in FEV 1 (mL/year) in women that are non-smokers or current smokers. The estimates are adjusted for age, height, smoking (pack years), BMI and change in BMI. Participants that were C pn negative at both surveys are the reference group in each smoking status group.Back to article page