Introduction:
The current analysis aimed to identify individual factors associated with COPD and possible differences among those who reported COPD in two age groups.

Methods:
A secondary, cross-sectional, nationally representative analysis using data from 2014 Hellenic Statistical Authority was conducted.(Hellenic Statistical Authority (ELSTAT), 2014) The current study divided data from 8,223 respondents into two groups for analysis; those between ≥40 and ≤64 years old (group A; n= 3,365) and ≥65 years old (group B; n=2,681). Individual factors included smoking, activity status (daily physical activity and mobility limitation) and depression, in addition to socio-economic and demographic factors. Logistic regression was used to identify individual factors associated with COPD in study groups. A χ2 test was used to compare subgroups ACOPD and BCOPD. All results were weighted and presented as proportions with a p-value threshold set to <0.05.

Results:
COPD prevalence in group A was 2% and 8.7% in group Β. Factors significantly associated with COPD in group A were smoking, obesity, and mild-moderate mobility limitations, while in group B were male gender, obesity, depression, and severe mobility limitations. Factors that were significantly different between ACOPD and BCOPD were smoking status (p<0.001), income (p=0.047), daily physical activity (p<0.001) and mobility limitations (p<0.001).

Conclusions:
Individual factors associated with COPD differed by age groups showing a need for a tailored approach targeting smoking cessation in younger ages and management of depression in those over 65 years old. All COPD patients would benefit from education on healthy diet and exercise.