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Table 1 The articles included in this systematic review, categorized by the methodology used

From: Idiopathic pulmonary fibrosis - a systematic review on methodology for the collection of epidemiological data

Type of study Author Year &journal Study period Cases (N) Prev., Inc., mortality
National registry data Thomeer et al. Acta Clin Belg 2001 1992-1996 72 Prevalence 1.25
Incidence 0.22
  Tinelli et al. Sarcoidosis Vasc Diffuse Lung Dis 2005 1998-2005 864 -
Questionnaires Xaubert et al. Sarcoidosis Vasc Diffuse Lung Dis 2004 10/2000-09/2001 197 (Inc) Incidence 2.94
  Karakatsani et al. Respir Med 2009 2004 189 (Prev) Prevalence 3.38
52(Inc) Incidence 0.93
Analysis of pre-existing database Hodgson et al. Thorax 2002 1997-1998 1445 Prevalence 16-18
  von Plessen et al. Respir Med 2003 1984-1998 158 Prevalence 19.71-23.42 (CFA)
Incidence 4.3 (CFA)
131.12.1991, 231.12.1998
  Gribbin et al. Thorax 2006 1991-2003 920 Incidence 4.6
  Raghu et al. Am J Respir Crit Care Med 2006 01/1996-12/2000 1943 (broad) Prevalence, 42.7 (broad)
387 (narrow) Prevalence, 14.0 (narrow)
Incidence, 16.3 (broad)
Incidence, 6.8 (narrow)
  Olson et al. Am J Respir Crit Care Med 2007 1992-2003 175,088 Mortality 50.8 (PF)
  Ohno et al. Respirology 2008 2005 1322 Prevalence 3.44 (IIP)
  Fernández Pérez et al. Chest 2010 1997-2005 47 Prevalence 27.9 (narrow)
Prevalence 63 (broad)
Incidence 8.8 (narrow)
Incidence 17.4 (broad)
  Navaratnam et al. Thorax 2011 mort.1968-2008 56,675 Mortality 2.54
inc.2000-2008 2,074 Incidence 7.44
  Lai et al. Respir Med 2012 1997-2007 418 (Prev) Prevalence 0.71-6.42 (broad)
      Prevalence 0.51-4.92 (narrow)
      Incidence 0.61-1.42 (broad)
      Incidence 0.51-1.22 (narrow)
      1in 1998, 2in 2007
  1. Prevalence (Prev) Incidence (Inc) and mortality/100,000.