Biomarkers · Functional Fitness

Chronotropic Index

U-shaped: both low and high values carry risk. Not measured in our NHANES panel; the curve is synthesised from the published association.

Hazard ratio relative to the curve's reference value, as synthesised from the published association.

Published hazard ratio1.39top vs bottom third (95% CI 1.23–1.57) · Cooper Center Longitudinal Study exercise cohort

Where people sit

Population percentiles (ratio) by sex and age band. Cycle or source as recorded in the catalogue.

Sex	Age	5th	25th	Median	75th	95th	n	Cycle / source
All	20-39	0.55	0.70	0.81	0.92	1.07	3,800	Peto et al. 2017 (Mort…
All	40-59	0.52	0.70	0.82	0.94	1.12	3,800	Peto et al. 2017 (Mort…
All	60+	0.51	0.69	0.81	0.93	1.10	3,800	Peto et al. 2017 (Mort…
All	all	0.52	0.70	0.82	0.94	1.12	3,800	Peto et al. 2017 (Mort…
Men	all	0.56	0.74	0.86	0.98	1.15	3,800	Peto et al. 2017 (Mort…
Women	all	0.49	0.66	0.78	0.91	1.08	3,800	Peto et al. 2017 (Mort…