Fig. 2From: Trends and area variations in Potentially Preventable Admissions for COPD in Spain (2002–2013): a significant decline and convergence between areasAge-sex adjusted relative risk of being hospitalized for a COPD-PPH condition for the overall population, men and women (Spanish NHS, 2002–2013). Foot: COPD-PPH: Chronic Obstructive Pulmonary Disease for Potentially Preventable Hospitalizations; NHS: National Health SystemBack to article page