Table 2.
Event Type | Low SBPa | Standard SBPa | ||||||||
---|---|---|---|---|---|---|---|---|---|---|
No. | All Events | Person-years | AAIR | IIR [Ref] | No. | All Events | Person-years | AAIR | IIR (95% CI) | |
Composite | ||||||||||
Total | 911 | 283 | 16 226 | 24.7 | 1 | 1469 | 518 | 25 027 | 28.7 | 1.16 (1.00–1.34) |
Male | 354 | 126 | 5953 | 28.5 | 1 | 671 | 257 | 10 726 | 31.9 | 1.12 (0.90–1.39) |
Female | 557 | 157 | 10 273 | 22.8 | 1 | 798 | 261 | 14 301 | 26.5 | 1.16 (0.95–1.41) |
African American | 373 | 133 | 6575 | 28.4 | 1 | 645 | 237 | 10 937 | 29.1 | 1.02 (0.82–1.26) |
White | 538 | 150 | 9651 | 21.8 | 1 | 824 | 281 | 14 090 | 28.8 | 1.32 (1.08–1.61) |
HF | ||||||||||
Total | 1028 | 224 | 19 083 | 19.8 | 1 | 1594 | 379 | 28 732 | 20.0 | 1.01 (0.86–1.19) |
Male | 433 | 110 | 7630 | 24.9 | 1 | 753 | 174 | 12 990 | 19.9 | 0.80 (0.63–1.02) |
Female | 595 | 114 | 11 452 | 16.5 | 1 | 841 | 205 | 15 743 | 20.1 | 1.22 (0.97–1.54) |
African American | 398 | 91 | 7407 | 18.4 | 1 | 683 | 170 | 12 259 | 20.6 | 1.12 (0.87–1.45) |
White | 630 | 133 | 11 675 | 20.8 | 1 | 911 | 209 | 16 473 | 19.9 | 0.96 (0.77–1.19) |
Stroke | ||||||||||
Total | 1201 | 111 | 22 451 | 6.8 | 1 | 1792 | 190 | 33 093 | 7.8 | 1.14 (0.90–1.44) |
Male | 482 | 50 | 8859 | 7.5 | 1 | 816 | 82 | 14 417 | 6.6 | 0.87 (0.61–1.24) |
Female | 719 | 61 | 13 859 | 6.4 | 1 | 976 | 108 | 18 676 | 8.8 | 1.36 (0.99–1.86) |
African American | 473 | 56 | 8757 | 8.7 | 1 | 751 | 92 | 13 573 | 8.9 | 1.02 (0.73–1.42) |
White | 728 | 56 | 13 694 | 5.6 | 1 | 1041 | 98 | 19 520 | 7.2 | 1.27 (0.91–1.77) |
MI/CHD | ||||||||||
Total | 1109 | 168 | 20 400 | 11.7 | 1 | 1705 | 284 | 30 594 | 12.4 | 1.07 (0.88–1.30) |
Male | 408 | 88 | 7076 | 16.7 | 1 | 736 | 145 | 12 498 | 14.2 | 0.85 (0.65–1.11) |
Female | 701 | 80 | 13 323 | 9.2 | 1 | 969 | 139 | 18 096 | 11.3 | 1.23 (0.93–1.61) |
African American | 461 | 74 | 8506 | 12.8 | 1 | 738 | 118 | 13 226 | 11.4 | 0.89 (0.66–1.19) |
White | 648 | 94 | 11 893 | 10.9 | 1 | 967 | 166 | 17 368 | 13.4 | 1.23 (0.96–1.58) |
Abbreviations: AAIR, age-adjusted incidence rate; HF, heart failure; IRR, incidence rate ratio; MI/CHD, combination measure myocardial infarction/coronary heart disease death; Ref, referent; SBP, systolic blood pressure.
Low SBP is defined as lower than 120 mm Hg; standard SBP, 120 to 139 mm Hg.