Table 2.

Cardiovascular Events and Mortality Rates by Baseline Serum Magnesium Level in the Chronic Renal Insufficiency Cohort Study

Events	Overall	Magnesium Tertilea
		1	2	3
		<1.90	1.90-2.09	≥2.10
All-cause mortality
No. of events/N	1,384/3,867	446/1,289	419/1,289	519/1,289
Event rate/1,000 person-y	35.9	34.7	31.8	41.3
Composite cardiovascular eventsb
No. of events/N	1,227/3,864	411/1,288	388/1,287	428/1,289
Event rate/1,000 person-y	40.0	40.1	37.2	42.7
Myocardial infarction
No. of events/N	379/3,864	129/1,288	122/1,287	128/1,289
Event rate/1,000 person-y	11.0	11.2	10.4	11.3
Incident congestive heart failure
No. of events/N	650/3866	216/1,289	187/1,288	247/1,289
Event rate/1,000 person-y	19.4	19.3	16.3	22.7
Atrial fibrillation
No. of events/N	639/3,864	202/1,288	190/1,288	247/1,288
Event rate/1,000 person-y	18.5	17.6	16.2	21.8

^aThe distribution of magnesium by tertiles was tertile 1, 0.70 to 1.89 mg/dL; tertile 2, 1.90 to 2.09 mg/dL (reference group); and tertile 3, 2.10 to 3.30 mg/dL.

^bComposite cardiovascular events include congestive heart failure, myocardial infarction, stroke, and peripheral arterial disease.