TABLE 4

Reclassification table and net reclassification improvement (NRI) for Global Lungs Initiative lower limit of normal (GLI-LLN)^# versus fixed cut-off for all-cause mortality and hospitalisation

	All	Reclassified up^¶	Reclassified down⁺	NRI (95% CI) %	p-value
Mortality
Dead	164	0	29	−17.7 (−24.2– −12.1)	<0.01
Alive	247	0	44	17.8 (13.3–23.1)	<0.01
Total	411			0.001 (−0.08–0.08)^§	0.99
Hospitalisation
With	203	0	39	−19.2 (−25.2– −14)	<0.001
Without	203	0	34	16.8 (11.9–22.5)	<0.001
Total	406			−0.02 (−0.10–0.05)^§	0.63

Data are presented as n, unless otherwise stated. ^#: 5th percentile of Global Lungs Initiative 2012 z-scores distribution; ^¶: if no airflow limitation by fixed cut-off, but airflow limitation by GLI-LLN; ⁺: if airflow limitation by fixed cut-off, but no airflow limitation by GLI-LLN; ^§: total NRI expressed as a proportion [19].