Table 2.

Crude incident rates of heart failure by baseline ferritin serum level (ARIC study)

	Heart failure in the whole population sample			Heart failure in non-anemic participants
Group	Participants	Number of events	Rates of events per 1000 person-years	Participants	Number of events	Rates of events per 1000 person-years
	All=1063	144		All=925	138
Normal range (30–200 ng/mL in women and 30–300 ng/mL in men)	663	84	5.9 (4.8–7.4)	594	77	6.1 (4.9–7.6)
Low ferritin (<30 ng/mL)	153	25	7.7 (5.2–11.4)	111	18	7.5 (4.7–12.0)
High ferritin (>200 ng/mL in women and >300 ng/mL in men)	247	35	6.9 (4.9–9.6)	220	32	7.1 (5.0–10.0)