Subgroup analyses for pooled analyses of the proportion of mortality

StudiesParticipantsProportion95% CIHeterogeneity
1 year to <2 years
 Overall6225 7700.120.09–0.14I2=95%
 2011 ATS/ERS/JRS/ALAT guideline1622830.070.05–0.09I2=72%
 2000 ATS/ERS consensus statement2523820.100.06–0.15I2=92%
 Other criteria2121 1050.180.15–0.22I2=92%
 Test for difference between subgroups <0.0001
2 to <5 years
 Overall3520 7870.380.34–0.42I2=94%
 2011 ATS/ERS/JRS/ALAT guideline410260.250.08–0.47I2=98%
 2000 ATS/ERS consensus statement139950.420.37–0.47I2=54%
 Other criteria1818 7660.380.33–0.43I2=94%
 Test for difference between subgroups=0.17
5 years
 2011 ATS/ERS/JRS/ALAT guideline43260.620.38–0.83I2=93%
 2000 ATS/ERS consensus statement98150.620.47–0.75I2=94%
 Other criteria1952280.740.62–0.84I2=98%
 Test for difference between subgroups=0.37

Data are presented as n, unless otherwise stated. ATS: American Thoracic Society; ERS: European Respiratory Society; JRS: Japanese Respiratory Society; ALAT: Latin American Thoracic Association.