Table 4.

Dichotomized magnesium levels in relation to total ischemic stroke, thrombotic and embolic strokes (RR [95% CI])

	Low magnesium	High magnesium	P-value
Magnesium levels	< 0.82 mmol/l	≥ 0.82 mmol/l
Total Stroke
Cases/Controls	106/71	354/389
Model 1	1.64 (1.17 – 2.31)	1.00	<0.01
Model 2	1.55 (1.08 – 2.21)	1.00	0.01
Model 3	1.57 (1.09 – 2.27)	1.00	0.01
Thrombotic Stroke
Cases/Controls	62/44	241/259
Model 1	1.51 (0.99 – 2.32)	1.00	0.05
Model 2	1.56 (1.00 – 2.45)	1.00	0.05
Model 3	1.66 (1.03 – 2.65)	1.00	0.03
Embolic Stroke
Cases/Controls	37/24	92/105
Model 1	1.87 (0.99 – 3.49)	1.00	0.05
Model 2	1.56 (0.76 – 3.21)	1.00	0.22
Model 3	1.76 (0.83 – 3.72)	1.00	0.14

Model 1: Matching factors only (on age, race/ethnicity, smoking, date of blood draw, fasting status, menopausal status and hormone use)

Model 2: Model 1 + alcohol, BMI, physical activity, aspirin, thiazide diuretics

Model 3: Model 2 + HbA1c, History of diabetes, hypertension, CHD and total/HDL cholesterol