1. Prevalence of chronic obstructive pulmonary disease and associated risk factors in Uganda (FRESH AIR Uganda): a prospective cross-sectional observational study 
Frederik van Gemert, MD, Bruce Kirenga, MMED, Niels Chavannes, PhD, Prof Moses Kamya, PhD, Simon Luzige, MMED, Patrick Musinguzi, MMED, John Turyagaruka, MPH, Rupert Jones, MD, Ioanna Tsiligianni, PhD, Sian Williams, MSc, Corina de Jong, PhD, Prof Thys van der Molen, PhD 
The Lancet Global Health 
Volume 3, Issue 1, Pages e44-e51 (January 2015)
DOI: /S X(14)
Copyright © 2015 van Gemert et al. Open Access article distributed under the terms of CC BY Terms and Conditions

2. Figure 1 Study participants
The Lancet Global Health 2015 3, e44-e51DOI: ( /S X(14) )
Copyright © 2015 van Gemert et al. Open Access article distributed under the terms of CC BY Terms and Conditions

3. Figure 2
Age of participants with chronic obstructive pulmonary disease
Chronic obstructive pulmonary disease defined as ratio of forced expiratory volume in 1 s to forced vital capacity less than the lower limit of normal.
The Lancet Global Health 2015 3, e44-e51DOI: ( /S X(14) )
Copyright © 2015 van Gemert et al. Open Access article distributed under the terms of CC BY Terms and Conditions

4. Figure 3
Smoking status by age and sex for participants with chronic obstructive pulmonary disease
Chronic obstructive pulmonary disease defined as ratio of forced expiratory volume in 1 s to forced vital capacity less than the lower limit of normal.
The Lancet Global Health 2015 3, e44-e51DOI: ( /S X(14) )
Copyright © 2015 van Gemert et al. Open Access article distributed under the terms of CC BY Terms and Conditions