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Table 1 Main characteristics of included studies

From: Prediction of severe community-acquired pneumonia: a systematic review and meta-analysis

Study first author Year of publication Studied scores End point Prevalence end point Uni- versus multicentric Prospective/Retrospective Ambulatory/Hospitalized Number NTBR Major criteria excluded
Ananda-Rajah 2008 PSI/CURB-65 ICU admission 10.50% Uni R H 408 Included n
Angus 2002 PSI/ATS 2001/ATS 1993/URB ICU admission 12.70% Multi P H 1,339 Included n
Brown 2009 IDSA-ATS 2007/SMART-COP/CURB-65/SCAP IT in ICU/IT/ICU admission 12.35% Uni R A+H 2,413 Excluded n
Buising 2006 PSI/ATS 2001/CURB/CURB-65 ICU admission/death or ICU 6.60% Uni P A+H 392 Included n
Buising 2007 PSI/CURB/CURB-65/CORB Vent/vaso ICU 6.30% Uni P A+H 330 Included n
Calbo 2004 PSI ICU admission 3.30% Uni P H 362 Included n
Capelastegui 2006 CURB-65 ICU admission 4.09% Uni R H 1,100 Included n
Chalmers 2008 CRB-65/CURB-65 Vent/vaso 10.20% Multi P A+H 1,007 Excluded n
Chalmers 2011 IDSA-ATS 2007/SMART-COP/CURB-65/SCAP/CURB/CRB-65/PSI, ATS 2001 minor Vent/vaso
ICU admission
6.4%
7.6%
Uni P H 1,062 Excluded y
Charles 2008 SMART-COP/CURB-65/PSI Vent/vaso 10.30% Multi P A+H 882 Included n
Davis 2010 SMART-COP/SMARTACOP Vent/vaso 21.00% Uni P H 184 Excluded n
Escobar 2008 Abbreviated PSI ICU admission 12.30% Uni R H 6,147 Included n
Espana 2006 ATS 2001/PSI/CURB-65/SCAP Death, vent, or septic shock 7.10% Uni P A+H 1,057 Included n
    Death, vent or septic shock 5.90% Uni P A+H 719 Included n
    Death, vent or septic shock 11.9% Multi R H 1,121 Included n
Espana 2010 SCAP/PSI/CURB-65 ICU admission NA Multi R H 712 Included n
Ewig 2000 PSI ICU admission 9% Uni P H 232 Included n
Ewig 2004 ATS 2001/PSI/CURB/CRB/URB/ ICU admission 16.70% Uni p H 696 Excluded n
Ewig 1998 ATS 1993/ATS 2001 ICU admission 16% Uni p H 332 Excluded n
Feagan 2000 PSI ICU admission 13.60% Multi r H 858 Included n
Frei 2004 SBP/pH/O2 saturation/pulse ICU admission 17% Uni r H 782 Included n
Fukuyama 2011 IDSA-ATS 2007/SMART-COP/CURB-65/SCAP/PSI/A-DROP ICU admission
Death, vent, or septic shock
7.6%
11.9%
Uni p H 505 Excluded n
Garcia-Vidal 2008 PSI Early death 2.3% Uni p H 2,457 Included  
Garau 2008 PSI ICU admission 5% Multi r H 3,233 Included n
Kamath 2003 CURB ICU admission 10% Uni p H 100 Excluded n
Lamy 2004 PSI ICU admission 14% Uni r H 152 Included n
Liapikou 2009 IDSA-ATS 2007/ATS 2001/PSI ICU admission 11% Uni p H 2,102 Excluded n(y)
Man 2007 PSI/CURB-65/CRB-65/ATS 2001 ICU admission 4% Uni p H 1,016 Included n
Marrie 2007 PSI/CURB-65 ICU admission 10% Multi p H 3,675 Included n
Neill 1996 CURB Mortality and ICU 11% Uni p H 251 Excluded n
Phua 2009 PSI/CURB-65/IDSA-ATS 2007 ICU admission 15% Uni p H 1,017 Excluded y
Putinati 2003 PSI ICU admission 10% Uni p H 229 Included n
Renaud 2007 PSI ICU admission 3.70% Multi p H 566 Included n
   PSI ICU admission 10.50% Multi p H 761 Included n
Renaud 2009 REA-ICU Early ICU admission < 3 4.40% Multi p A+H 4,593 Excluded y
Restrepo 2008 PSI/ATS 2001 ICU admission 19.90% Multi r H 730 Excluded n
Riley 2004 ATS 2001/PSI ICU admission 23.69% Uni r H 498 Excluded n
Roson 2001 PSI ICU admission 8% Uni p H 533 Included n
Shah 2010 CURB-65/PSI ICU admission 23.30% Uni p A+H 150 Included n
Van der Eerden 2004 PSI ICU admission 8.00% Uni p H 260 Included n
  1. A, ambulatory; H, hospitalized; ICU, intensive care unit; IT, intensive treatment; P, prospective; R, retrospective; n, number; y, yes; NTBR, not to be resuscitated; Vent, ventilation; Vaso, vasopressor.