TABLE 3

Subgroup analyses for pooled analyses of the proportion of mortality

	Studies	Participants	Proportion	95% CI	Heterogeneity
1 year to <2 years
Overall	62	25 770	0.12	0.09–0.14	I²=95%
2011 ATS/ERS/JRS/ALAT guideline	16	2283	0.07	0.05–0.09	I²=72%
2000 ATS/ERS consensus statement	25	2382	0.10	0.06–0.15	I²=92%
Other criteria	21	21 105	0.18	0.15–0.22	I²=92%
Test for difference between subgroups <0.0001
2 to <5 years
Overall	35	20 787	0.38	0.34–0.42	I²=94%
2011 ATS/ERS/JRS/ALAT guideline	4	1026	0.25	0.08–0.47	I²=98%
2000 ATS/ERS consensus statement	13	995	0.42	0.37–0.47	I²=54%
Other criteria	18	18 766	0.38	0.33–0.43	I²=94%
Test for difference between subgroups=0.17
≥5 years
Overall	32	6369	0.69	0.59–0.78	I²=98%
2011 ATS/ERS/JRS/ALAT guideline	4	326	0.62	0.38–0.83	I²=93%
2000 ATS/ERS consensus statement	9	815	0.62	0.47–0.75	I²=94%
Other criteria	19	5228	0.74	0.62–0.84	I²=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.