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Table 2 Characteristics of IPF patients’ demographics according to the studies included

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

Study Mean/median age at Dg Male/Female Total no of cases/ ATS/ERS 2000/2002 Before ATS/ERS 2000/2002 Re-evaluation
% IPF of ILD Dg criteria used
Thomeer et al. 2001 57 years 58/42% 362/20%   X Liebow 1975  
Tinelli et al. 2005 68 years 63/37% 3152/27% X   
Xaubert et al. 2004    511/38.6% X   
Karakatsani et al. 2009    967/20% X   
Hodgson et al. 2002     X   X
von Plessen et al. 2003 69.2 45/55    X Turner-Warwick X
Gribbin et al. 2006 71 years 62/38%    X  
Raghu et al. 2006      X  
Olson et al. 2007      X  
Ohno et al. 2008 65 years   1543/85.7% X   
Fernández Pérez et al. 2010 74 years    X   X
Navaratnam et al. 2011 74 years 63/37%    X  
Lai et al. 2012      X  
  1. % IPF of ILD. All of the ILD studies included sarcoidosis patients.