Table 1. Study characteristics and clinical outcomes.

Study	Year	Institution	Country	Period	Type	Total patients	IPF patients	Stratify data by transplant indications	Stratify data by surgical type (SLTx vs. BLTx)	Stratify by transplant indication and surgery type	Study quality
Algar	2010	Lung Transplantation Unit, Hospital Universitario Reina Sofia, University of Cordoba, Cordoba, Spain	Spain	October 1993–December 2009	Single and bilateral	301	89	Yes	No	No	High
Burdett	2012	Freeman Hospital, Newcastle-upon-Tyne, United Kingdom	United Kingdom	1987–2010	Single	259	108	Yes	No	No	Moderate
Burton	2005	Hjertecentret, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark	Denmark	January 1992–December 2003	Single and bilateral	362	N/A	No	Yes	No	High
De Oliveira	2012	Division of Cardiothoracic Surgery, Department of Surgery, University of Wisconsin Hospital and Clinics, Madison, WI, USA	USA	January 1993–March 2009	Single and bilateral	111	79	Yes	Yes	Yes	High
De Perrot	2004	Toronto Lung Transplant Program, Toronto General Hospital, University of Toronto, Toronto, Ontario, Canada	Canada	1983–2003	Single and bilateral	501	97	Yes	Yes	No	High
Harringer	1999	Division of Thoracic and Cardiovascular Surgery, Hannover Medial School, 20623 Hannover, Germany	Germany	December 1987–September 1998	Single and bilateral	258	73	Yes	Yes	No	High
Mason	2007	Departments of Thoracic and Cardiovascular Surgery, Quantitative Health Sciences, and Pulmonary, Allergy, and Critical Care Medicine, Cleveland Clinic, Cleveland, Ohio, USA	USA	February 1990–November 2005	Single and bilateral	469	82	Yes	Yes	Yes	High
Meyers	2000	Divisions of Cardiothoracic Surgery and Pulmonary and Critical Care Medicine, Washington University School Medicine, St Louis, Mo, USA	USA	July 1988–July 1998	Single and bilateral	433	45	Yes	Yes	Yes	High
Rubin	2015	Pavilhão Pereira Filho, Santa Casa de Porto Alegre; and at the Universidade Federal de Ciências da Saúde de Porto Alegre, Porto Alegre, Brasil	Brazil	January 2006–December 2012	Single	218	79	Yes	N/A	N/A	Moderate
Smith	2006	Departments of Surgery, Public Health Sciences, and Internal Medicine, University of Virginia, Charlottesville, Virginia, USA	USA	1995–2005	Single and bilateral	182	37	Yes	No	No	High
Thabut	2003	Service de Pneumologie et Re´animation Respiratoire, a Service de Chirurgie Thoracique et Vasculaire, b and Service d’Anatomopathologie, Hoˆpital Beaujon, c Clichy, France	France	N/A	Single	28	28	Yes	N/A	N/A	High
Wei	2019	Transplant Center, The Affiliated Wuxi People’s Hospital of Nanjing Medical University, Jiangsu, China	China	January 2015–December 2017	Single and bilateral	109	109	Yes	Yes	Yes	High
Kreisel	2011	Division of Cardiothoracic Surgery, a Department of Surgery, and The Division of Pulmonary and Critical Care Medicine Department of Medicine, Washington University in St Louis, Mo, USA	USA	July 1988–January 2009	Single and bilateral	1,000	161	Yes	Yes	Yes	High
Schachna	2006	Johns Hopkins Hospital and the University of Pittsburgh Medical Center	USA	December 1989–June 2002	Single and bilateral	689	70	Yes	No	No	High
Neurohr	2010	Ludwig-Maximilians University, Munich, Germany	Germany	1997–2008	Single and bilateral	76	76	Yes	Yes	Yes	High
Keating	2009	Lung Transplant Service, Allergy, Immunology and Respiratory Medicine, Alfred Hospital, Melbourne, Australia	Australia	1990–2008	Single and bilateral	585	90	Yes	Yes	Yes	High
Grossman	1989	Mount Sinai Hospital and the University of Toronto	Canada	November 1983–August 1989	Single	20	20	Yes	N/A	N/A	High

SLTx, single lung transplantation; BLTx, bilateral lung transplantation; N/A, not available.