Introduction:
Indonesia ranks the 7th largest in the world in the number of deaths caused by cigarettes, including those caused by chronic obstructive pulmonary disease (COPD).

Objectives:
The purpose of this study was to determine the relationships of the first smoking age and smoking cessation age on the prevalence of COPD.

Methods:
The method used was analytic with a cross-sectional design, taking the data from the Indonesia Family Life Survey-5 (IFLS-5). Researchers using big data IFLS-5 provided for free research. IFLS-5 was conducted in 2014-2015 by the RAND collaborated with Meter Survey conducted in Indonesia. Samples taken were respondents of IFLS-5 at all ages, amounting to 34262 people risking of COPD. Data analysis was partially conducted with the chi-square to analyze the relationship between variables.

Results:
Smoking status was one of risk factors causing COPD, i.e. smoking (p = 0.014; PR = 1.22; 95% CI = 1.03 to 1.44), smoking cessation age >40 years (p < 0.001; PR = 3.85; 95% CI = 2.83 to 5.25); age >40 years (p < 0.001; PR = 3.85; 95% CI = 2.83 to 5.25), the first smoking age <40 years (p = 0.019; PR = 1.22; 95% CI = 1.03-1.44)

Conclusion(s):
There are relationships between the first smoking age and smoking cessation age with COPD.