Table 3.
Age-Adjusted Cardiovascular Event Incidence Rates and Incidence Rate Ratios by SBP Category,a 1987–2010
| Event Type | Elevated SBP 1a | Elevated SBP 2a | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| No. | All Events | Person-years | AAIR | IRR (95% CIs)b | No. | All Events | Person-years | AAIR | IRR (95% CIs)b | |
| Composite | ||||||||||
| Total | 1538 | 579 | 25 140 | 28.6 | 1.16 (1.01–1.34) | 490 | 242 | 6717 | 42.7 | 1.73 (1.46–2.05) |
| Male | 681 | 300 | 10 253 | 34.1 | 1.19 (0.97–1.47) | 203 | 104 | 2567 | 52.8 | 1.85 (1.43–2.40) |
| Female | 867 | 279 | 14 887 | 25.1 | 1.10 (0.91–1.34) | 287 | 138 | 4149 | 36.8 | 1.61 (1.28–2.02) |
| African American | 639 | 272 | 9875 | 35.0 | 1.23 (1.00–1.51) | 282 | 136 | 3647 | 43.3 | 1.52 (1.20–1.93) |
| White | 899 | 307 | 15 266 | 25.7 | 1.18 (0.97–1.43) | 208 | 106 | 3071 | 41.8 | 1.92 (1.50–2.46) |
| HF | ||||||||||
| Total | 1637 | 447 | 28 493 | 22.4 | 1.14 (0.97–1.34) | 541 | 182 | 7960 | 29.5 | 1.49 (1.23–1.81) |
| Male | 755 | 239 | 12 990 | 26.9 | 1.08 (0.86–1.35) | 234 | 83 | 3189 | 35.7 | 1.44 (1.08–1.92) |
| Female | 882 | 208 | 16 183 | 18.9 | 1.15 (0.92–1.45) | 307 | 99 | 4771 | 25.4 | 1.54 (1.18–2.02) |
| African American | 669 | 199 | 10 985 | 26.4 | 1.43 (1.12–1.83) | 311 | 101 | 4304 | 28.9 | 1.57 (1.18–2.08) |
| White | 968 | 248 | 17 509 | 21.0 | 1.01 (0.82–1.25) | 230 | 81 | 3656 | 30.0 | 1.44 (1.09–1.90) |
| Stroke | ||||||||||
| Total | 1752 | 201 | 31 132 | 7.17 | 1.05 (0.83–1.32) | 574 | 106 | 8676 | 12.75 | 1.87 (1.43–2.44) |
| Male | 801 | 104 | 13 404 | 7.69 | 1.02 (0.73–1.43) | 245 | 44 | 3429 | 14.3 | 1.90 (1.27–2.85) |
| Female | 951 | 97 | 17 727 | 6.9 | 1.08 (0.78–1.49) | 329 | 62 | 5247 | 11.4 | 1.83 (1.28–2.61) |
| African American | 717 | 107 | 11 879 | 9.54 | 1.10 (0.80–1.52) | 336 | 70 | 4768 | 14.2 | 1.63 (1.15–2.32) |
| White | 1035 | 94 | 19 253 | 6.18 | 1.09 (0.78–1.52) | 238 | 36 | 3908 | 11.46 | 2.03 (1.33–3.09) |
| MI/CHD | ||||||||||
| Total | 1698 | 292 | 29 419 | 11.6 | 0.99 (0.82–1.20) | 557 | 119 | 8319 | 16.5 | 1.41 (1.12–1.78) |
| Male | 753 | 165 | 12 169 | 14.8 | 0.88 (0.68–1.14) | 227 | 58 | 3219 | 25.6 | 1.53 (1.10–2.13) |
| Female | 945 | 127 | 17 250 | 9.5 | 1.03 (0.78–1.36) | 330 | 61 | 5100 | 10.9 | 1.18 (0.85–1.65) |
| African American | 700 | 121 | 11 690 | 12.8 | 1.00 (0.74–1.34) | 329 | 67 | 4693 | 17.2 | 1.35 (0.97–1.88) |
| White | 998 | 171 | 17 728 | 10.9 | 1.00 (0.78–1.29) | 228 | 52 | 3625 | 15.8 | 1.45 (1.03–2.04) |
Abbreviations: AAIR, age-adjusted incidence rate; HF, heart failure; IRR, incidence rate ratio; MI/CHD, myocardial infarction/coronary heart disease death; SBP, systolic blood pressure.
a
Elevated SBP 1 is defined as 140 to 159 mm Hg; Elevated SBP 2, 160 mm Hg or higher.
b
Compared with low SBP (see Table 2).