Figures & data
Notes: Zone A, areas with very large hospitals, very high density of respiratory medicine physicians, and low ratios of expected COPD cases per physician; Zone B, areas with large respiratory medicine departments and many private practitioners; Zone C, all other areas with mostly aging rural populations and few respiratory medicine physicians.
Notes: All the prefectures studied were compared against Attica, wherein higher number of cases was reported. Highlighted data represent significant results. Log RR >0 indicates higher incidence, while value <0 indicates lower incidence.
Abbreviations: CI, confidence interval; COPD, chronic obstructive pulmonary disease; RR, rate ratios.
Abbreviations: CI, confidence interval; COPD, chronic obstructive pulmonary disease; RR, rate ratios.