Biomarkers · Functional Fitness

FEV1/FEV6 Ratio

Higher values go with lower risk of death. Not measured in our NHANES panel. The curve is drawn from the published study (source below).

FEV1/FEV6 Ratio and risk of death

Published curve higher than the NHANES fitNHANES fit higher

Risk of death relative to the curve's reference value, drawn from the published study (source below).

Published risk of death1.87×FEV1/FEV6 < lower limit of normal vs >= LLN (95% CI 1.35–2.58) · Population-based SA.R.A. study, Italy, subjects aged >65 years with spirometry

FEV1/FEV6 Ratio by age and sex

Each bar runs from the 5th to the 95th percentile, the darker part from the 25th to the 75th, and the tick is the median. Not a reference range or a target.

The percentiles as a table

Each row is one sex and age band: the values below which 5%, 25%, 50%, 75% and 95% of people fall (ratio), from the survey named in the row. Not a reference range or a target.
Sex	Age	5th	25th	Median	75th	95th	n	Cycle / source
All	20-39	0.73	0.80	0.84	0.87	0.93	1,623	NHANES 2011-2012
All	40-59	0.68	0.77	0.81	0.84	0.88	1,478	NHANES 2011-2012
All	60-79	0.65	0.74	0.78	0.82	0.86	1,044	NHANES 2011-2012
All	all	0.69	0.77	0.81	0.85	0.90	4,145	NHANES 2011-2012
Men	20-39	0.73	0.79	0.83	0.87	0.92	866	NHANES 2011-2012
Men	40-59	0.67	0.76	0.80	0.83	0.88	717	NHANES 2011-2012
Men	60-79	0.64	0.73	0.77	0.81	0.85	526	NHANES 2011-2012
Men	all	0.68	0.76	0.81	0.84	0.90	2,109	NHANES 2011-2012
Women	20-39	0.74	0.81	0.84	0.88	0.94	757	NHANES 2011-2012
Women	40-59	0.70	0.78	0.81	0.84	0.88	761	NHANES 2011-2012
Women	60-79	0.66	0.75	0.79	0.82	0.86	518	NHANES 2011-2012
Women	all	0.70	0.78	0.82	0.85	0.90	2,036	NHANES 2011-2012

Sources

Risk curve: Sorino 2011 (PMID 20969726): all-cause HR 1.87 (1.35-2.58) FEV1/FEV6 < lower limit of normal vs >= LLN. Scaled to US values (NHANES).
Sorino et al. Prognostic value of FEV1/FEV6 in elderly people. Clinical physiology and functional imaging. 2011;31:101-7.

Map FEV1/FEV6 Ratio against another biomarker.

Map FEV1/FEV6 Ratio against another marker