Table 2.

Incidence Rates per 1000 person years (95% confidence intervals) for outcomes during up to 8 years follow up in adults with or without acute kidney injury (AKI), stratified by body mass index

	BMI category
	< 20 kg/m2	20–24.9 kg/m2	25–29.9 kg/m2	≥ 30 kg/m2
Incident CKD (n = 201 events)
No AKI
Events/total n	2/15	7/75	28/164	29/209
Rate	31.5 (7.9 to 125.8)	20.0 (9.5 to 42.0)	35.7 (24.7 to 51.7)	29.7 (20.6 to 42.7)
AKI
Events	2/11	23/85	30/134	80/233
Rate	57.6 (14.4 to 230)	71.4 (47.5 to 108)	56.2 (39.3 to 80.3)	94.4 (75.8 to 118)
CKD Progression (n = 64 events)
No AKI
Events	1/6	1/50	7/105	11/145
Rate	44.9 (6.2 to 320)	4.6 (0.6 to 32.6)	14.8 (7.1 to 31.1)	18.4 (10.2 to 33.2)
AKI
Events	0/5	9/49	11/89	24/163
Rate	0	47.1 (24.5 to 90.5)	32.7 (18.1 to 59.1)	38.7 (25.9 to 57.7)
ESRD (n = 58 events)
No AKI
Events	2/21	2/125	2/269	6/354
Rate	24.0 (6.0 to 96.1)	3.5 (0.9 to 13.8)	1.5 (0.4 to 8.1)	3.6 (1.6 to 8.1)
AKI
Events	0/16	7/134	13/223	26/396
Rate	0	12.4 (5.9 to 26.1)	13.7 (8.0 to 23.6)	15.5 (10.5 to 22.7)
Combined CKD event (n = 300 events)
No AKI
Events	4/21	10/125	36/269	43/354
Rate	49.0 (18.4 to 130)	17.7 (9.5 to 33.0)	28.7 (20.7 to 39.7)	27.4 (20.3 to 36.9)
AKI
Events	2/16	36/134	48/223	121/396
Rate	39.0 (9.7 to 155.9)	72.6 (52.3 to 101)	56.4 (42.5 to 74.8)	84.7 (70.9 to 101)
Major Atherosclerotic Cardiovascular Events (MACE n = 129 events)
No AKI
Events	2/21	13/125	26/269	28/354
Rate	24.1 (6.0 to 96.4)	24.3 (14.1 to 41.9)	22.0 (15.0 to 32.3)	18.5 (12.8 to 26.8)
AKI
Events	2/21	8/134	25/223	25/396
Rate	37.8 (9.5 to 151.2)	15.2 (7.6 to 30.5)	28.1 (19.0 to 41.6)	15.4 (10.4 to 22.9)
Death (n = 320 events)
No AKI
Events	5/21	18/125	39/269	50/354
Rate	56.0 (23.3 to 135)	30.9 (19.5 to 49.0)	29.7 (21.7 to 40.6)	30.0 (22.8 to 39.6)
AKI
Events	11/16	38/134	60/223	99/396
Rate	196.5 (109 to 355)	64.9 (47.2 to 89.2)	60.8 (47.2 to 78.4)	56.9 (46.7 to 69.3)