Supplemental table. Baseline characteristics in tertiles of serum 25(OH)D3 according to median magnesium intake (414 mg/d) in 1892 men at the Kuopio Ischaemic Heart Disease Risk Factor Lower Mg median (<414 mg/day) Higher Mg median (≥414 mg/day) Serum 25(OH)D3 tertile (nmol/L) Serum 25(OH)D3 tertile (nmol/L) 1 (<32.1) 2 (32.1-49.4) 3 (>49.4) 1 (<32.1) 2 (32.1-49.4) 3 (>49.4) Age (years) 52.4 (5.2) 52.3 (5.2) 52.8 (5.1) 52.0 (5.2) 52.3 (5.7) 52.6 (5.5) 2 Body mass index (kg/m ) 26.8 (4.0) 26.7 (3.2) 26.8 (3.5) 26.5 (3.6) 27.0 (3.3) 26.4 (3.2) Leisure-time physical activity 107 (144) 144 (161) 161 (166)* 124 (155) 143 (211) 150 (157) (kcal/d) Education (years) 9.0 (3.7) 9.3 (3.7) 9.4 (3.9) 8.6 (3.4) 9.0 (3.6) 8.7 (3.5) Annual income (Euro) 12803 (7836) 15285 (10604) 15091 (9896)* 12852 (8828) 15055 (10092) 14324 (8813) Systolic blood pressure (mmHg) 135 (17) 134 (17) 134 (16) 135 (17) 135 (16) 132 (16)* Diastolic blood pressure (mmHg) 90 (11) 89 (10) 89 (11) 90 (11) 89 (10) 87 (9)* Total cholesterol/HDL cholesterol 4.8 (1.3) 4.8 (1.4) 4.7 (1.4) 4.9 (1.5) 4.7 (1.5) 4.6 (1.4) ratio C-reactive protein (mg/L) 3.0 (6.4) 2.5 (4.9) 2.1 (3.2)* 2.1 (4.4) 2.0 (2.7) 1.7 (2.2) Serum long-chain omega-3 4.2 (1.1) 4.6 (1.2) 4.8 (1.5)* 4.0 (1.1) 5.0 (1.8) 5.5 (2.1)* polyunsaturated fatty acids (%) Alcohol intake (g/wk) 77 (125) 77 (122) 83 (143) 62 (105) 76 (105) 59 (78) Energy intake (kcal/d) 2403 (664) 2423 (625) 2309 (583)* 2485 (657) 2425 (637) 2317 (591)* Energy-adjusted magnesium intake 366 (35) 364 (39) 366 (37) 474 (51) 471 (50) 469 (50) (mg/d) Intake of fruits, berries and 224 (139) 223 (117) 246 (140)* 275 (174) 291 (170) 297 (177) vegetables (g/d)** Use of multivitamin/mineral 1 0 2 2 1 1 supplements (%) Current smoker (%) 35 25 25* 37 30 27* Diabetes (%) 5 4 3 5 7 4 Married (%) 83 86 90* 81 89 91* Blood sample taken between June 7 17 44* 5 15 48* and September (%) Values are means (SD) or percentages. *P for trend across tertiles <0.05**Excluding potatoes