Table 1.

Baseline cohort characteristics for incident AKI studies.

	UK Biobank (N = 428,793)		ARIC (N = 10,570)		CHS (N = 2,790)
	CHIP	No CHIP	CHIP	No CHIP	CHIP	No CHIP
Participants (N)	14,552	414,241	743	9,827	404	2,386
Age (years; mean ± SD)	61 ± 7	56 ± 8	60 ± 6	58 ± 6	75 ± 6	74 ± 6
Male sex (%)	47	46	48	45	47	43
eGFR (ml/min/1.73m2; mean ± SD)	91 ± 15	95 ± 14	93 ± 16	96 ± 15	66 ± 16	69 ± 16
Diabetes (%)	2	1	10	10	19	16
Hypertension (%)	8	6	4	4	47	46
Smoking (%)	54	41	62	57	54	55