Fig. 1From: Trends and area variations in Potentially Preventable Admissions for COPD in Spain (2002–2013): a significant decline and convergence between areasDistribution of COPD-PPH standardized rates among Hospital Service Areas 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 System. Gray lines represent deciles and coloured lines the median (red) and the mean (blue)Back to article page