| Current smoking | | | | |
| Overall INTERHEART study | 26.8 | 45.2 | 2.95 (2.72 to 3.20) | – |
| Overall African population | 38.1 | 52.3 | 2.42 (1.86 to 3.15) | – |
| Black Africans | 29.8 | 26.6 | 1.14 (0.69 to 1.89) | – |
| Coloured Africans | 46.2 | 64.6 | 2.34 (1.53 to 3.59) | – |
| European/other Africans | 39.1 | 51.6 | 2.73 (1.44 to 5.17) | – |
| Current/former smoking | | | | |
| Overall INTERHEART study | 48.1 | 65.2 | 2.27 (2.11 to 2.44) | 36.4 (33.9 to 39.0) |
| Overall African population | 56.3 | 72.3 | 2.17 (1.70 to 2.77) | 38.94 (29.75 to 48.99) |
| Black Africans | 38.4 | 45.3 | 1.48 (0.95 to 2.30) | 14.23 (4.33 to 37.80) |
| Coloured Africans | 74.9 | 83.6 | 1.79 (1.20 to 2.69) | 37.37 (20.25 to 58.37) |
| European/other Africans | 55.2 | 75.4 | 2.76 (1.51 to 5.02) | 48.05 (29.50 to 67.15) |
| Diabetes | | | | |
| Overall INTERHEART study | 7.5 | 18.5 | 3.08 (2.77 to 3.42) | 12.3 (11.2 to 13.5) |
| Overall African population | 7.6 | 23.6 | 3.55 (2.53 to 4.99) | 16.70 (12.88 to 21.39) |
| Black Africans | 4.0 | 23.6 | 5.79 (2.91 to 11.53) | 18.25 (11.80 to 27.13) |
| Coloured Africans | 11.5 | 23.4 | 2.53 (1.61 to 3.96) | 14.14 (8.91 to 21.72) |
| European/other Africans | 7.6 | 24.0 | 4.04 (1.67 to 9.77) | 18.20 (10.38 to 29.94) |
| Hypertension | | | | |
| Overall INTERHEART study | 21.9 | 39.0 | 2.48 (2.30 to 2.68) | 23.4 (21.7 to 25.1) |
| Overall African population | 18.8 | 42.3 | 3.44 (2.64 to 4.48) | 29.56 (24.34 to 35.39) |
| Black Africans | 13.1 | 50.4 | 6.99 (4.23 to 11.55) | 41.91 (32.46 to 51.98) |
| Coloured Africans | 26.5 | 41.7 | 2.31 (1.61 to 3.32) | 23.42 (15.75 to 33.34) |
| European/other Africans | 13.3 | 34.4 | 3.90 (1.92 to 7.94) | 25.79 (16.42 to 38.08) |
| Abdominal obesity (tertiles 2, 3 vs 1) | | | | |
| Overall INTERHEART study | 66.7 | 76.5 | 1.77 (1.67 to 1.88) | 33.7 (30.2 to 37.4) |
| Overall African population | 68.8 | 87.3 | 2.99 (2.20 to 4.07) | 58.35 (47.6 to 68.4) |
| Black Africans | 66.8 | 80.6 | 2.01 (1.21 to 3.34) | 40.35 (20.23 to 64.34) |
| Coloured Africans | 71.3 | 89.2 | 3.73 (2.35 to 5.92) | 65.88 (51.97 to 77.50) |
| European/other Africans | 66.7 | 90.3 | 5.53 (2.51 to 12.19) | 74.00 (55.10 to 86.84) |
| Increased ApoB/ApoA-1 ratio (tertiles 2, 3 vs 1) | | | | |
| Overall INTERHEART study | 66.7 | 81.06 | 2.29 (2.13 to 2.45) | 46.24 (43.50 to 49.01) |
| Overall African population | 58.2 | 84.0 | 3.78 (2.75 to 5.19) | 61.86 (52.04 to 70.79) |
| Black Africans | 45.8 | 72.6 | 3.43 (2.06 to 5.71) | 51.59 (35.86 to 67.01) |
| Coloured Africans | 67.8 | 86.7 | 3.44 (2.11 to 5.60) | 61.54 (45.45 to 75.45) |
| European/other Africans | 67.14 | 91.01 | 6.88 (2.60 to 18.21) | 77.51 (56.78 to 90.05) |