Nera Agabiti
Departement of Epidemiology, Regional Health Service of Lazio, Rome
Maria Assunta Porretta
Departement of Biomedicine and Prevention, Tor Vergata University, and the Respiratory Medicine, Radiology and Pathology Units, Tor Vergata University Hospital, Rome, Italy
Lisa Bauleo
Departement of Epidemiology, Regional Health Service of Lazio, Rome
Angelo Coppola
Departement of Biomedicine and Prevention, Tor Vergata University, and the Respiratory Medicine, Radiology and Pathology Units, Tor Vergata University Hospital, Rome, Italy
Gianluigi Sergiacomi
Departement of Biomedicine and Prevention, Tor Vergata University, and the Respiratory Medicine, Radiology and Pathology Units, Tor Vergata University Hospital, Rome, Italy
Armando Fusco
Departement of Biomedicine and Prevention, Tor Vergata University, and the Respiratory Medicine, Radiology and Pathology Units, Tor Vergata University Hospital, Rome, Italy
Francesco Cavalli
Departement of Biomedicine and Prevention, Tor Vergata University, and the Respiratory Medicine, Radiology and Pathology Units, Tor Vergata University Hospital, Rome, Italy
Maria Cristina Zappa
Pneumology Service, S. Pertini Hospital, Rome
Rossana Vignarola
Pneumology Service, S. Pertini Hospital, Rome
Stefano Carlone
Pneumology Service, San Giovanni Addolorata Hospital, Rome
Gianpiero Facchini
Pneumology Service, San Giovanni Addolorata Hospital, Rome
Salvatore Mariotta
5Pneumology Service, Sant’Andrea Hospital, La Sapienza University, Rome
Paolo Palange
Internal Medicine I Division, Umberto I Hospital, La Sapienza University Rome
Salvatore Valente
Pneumology Service, A. Gemelli Hospital, Catholic University, Rome
Giovanna Pasciuto
Pneumology Service, A. Gemelli Hospital, Catholic University, Rome
Gabriella Pezzuto
Departement of Biomedicine and Prevention, Tor Vergata University, and the Respiratory Medicine, Radiology and Pathology Units, Tor Vergata University Hospital, Rome, Italy
Augusto Orlandi
Departement of Biomedicine and Prevention, Tor Vergata University, and the Respiratory Medicine, Radiology and Pathology Units, Tor Vergata University Hospital, Rome, Italy
Danilo Fusco
Departement of Epidemiology, Regional Health Service of Lazio, Rome
Marina Davoli
Departement of Epidemiology, Regional Health Service of Lazio, Rome
Cesare Saltini
Departement of Biomedicine and Prevention, Tor Vergata University, and the Respiratory Medicine, Radiology and Pathology Units, Tor Vergata University Hospital, Rome, Italy
Ermanno Puxeddu
Departement of Biomedicine and Prevention, Tor Vergata University, and the Respiratory Medicine, Radiology and Pathology Units, Tor Vergata University Hospital, Rome, Italy
Keywords
Idiopathic pulmonary fibrosis, epidemiology, ICD9-CM
Abstract
Background: Studies of Idiopathic Pulmonary Fibrosis (IPF) epidemiology show regional variations of incidence and prevalence; no epidemiological studies have been carried out in Italy. Objective: To determine incidence and prevalence rates of IPF in the population of a large Italian region. Methods: in this cross-sectional study study data were collected on all patients of 18 years of age and older admitted as primary or secondary idiopathic fibrosing alveolitis (ICD9-CM 516.3) to Lazio hospitals, from 1/1/2005 to 31/12/2009, using regional hospital discharge, population and cause of death databases. Reporting accuracy was assessed on a random sample of hospital charts carrying the ICD9-CM 516.3, 516.8, 516.9 and 515 codes, by reviewing radiology and pathology findings to define cases as IPF “confident”, “possible” or “inconsistent”. Results: Annual prevalence and incidence of IPF were estimated at 25.6 per 100,000 and 7.5 per 100,000 using the ICD9-CM code 516.3 without chart audit while they were estimated at 31.6 per 100,000 and at 9,3 per 100,000 for the IPF “confident” definition after hospital chart audit. Conclusion: The data provide a first estimate of IPF incidence in Italy and indicate that incidence and prevalence in southern European regions may be similar to those observed in northern Europe and North America.
Abstract 
