Table 2 Sample size, number of incident CHD events, and age- and field-center adjusted incidence rates (per 1,000 person-years) by gender, race, and ABI level: the ARIC study, 1987–2001*
Men | Women | |||||
|---|---|---|---|---|---|---|
Covariate | Sample size | CHD events | Rate (95% CI) | Sample size | CHD events | Rate (95% CI) |
Whites | ||||||
PAD | ||||||
ABI < 0.90 | 80 | 19 | 21.8 (13.9 – 34.3) | 172 | 14 | 6.9 (4.1–11.6) |
ABI ≥ 0.90 | 4446 | 431 | 8.0 (7.3–8.9) | 5330 | 222 | 3.4 (3.0–3.9) |
ABI < 0.90 men, < 0.85 women | 80 | 19 | 21.9 (13.9–34.4) | 69 | 9 | 11.1 (5.8–21.3) |
ABI ≥ 0.90 men, ≥ 0.85 women | 4446 | 431 | 8.0 (7.3–8.9) | 5433 | 227 | 3.4 (3.0–3.9) |
ABI | ||||||
≤ 0.80 | 38 | 10 | 24.2 (13.0–45.0) | 31 | 9 | 27.1 (14.0–52.2) |
(0.80–0.90] | 43 | 9 | 19.5 (10.1–37.6) | 142 | 5 | 2.9 (1.2–7.0) |
(0.90–1.00] | 195 | 27 | 11.9 (8.2–17.4) | 665 | 35 | 4.6 (3.3–6.3) |
(1.00–1.10] | 764 | 91 | 10.4 (8.4–12.8) | 1546 | 71 | 3.9 (3.1–4.9) |
(1.10–1.20] | 1489 | 169 | 9.7 (8.3–11.2) | 1712 | 66 | 3.1 (2.5–4.0) |
(1.20–1.30] | 1321 | 92 | 5.7 (4.6–7.0) | 994 | 30 | 2.3 (1.6–3.3) |
>1.30 | 676 | 52 | 5.9 (4.5–7.8) | 412 | 20 | 3.5 (2.3–5.5) |
African Americans | ||||||
PAD | ||||||
ABI < 0.90 | 42 | 14 | 40.7 (24.0–69.0) | 87 | 11 | 11.4 (6.3–20.7) |
ABI ≥ 0.90 | 1308 | 131 | 8.9 (7.5–10.6) | 2123 | 122 | 5.0 (4.2–5.9) |
ABI < 0.90 men, < 0.85 women | 42 | 14 | 40.7 (24.0–69.0) | 52 | 8 | 13.6 (6.8–27.2) |
ABI ≥ 0.90 men, ≥ 0.85 women | 1308 | 131 | 8.9 (7.5–10.6) | 2158 | 125 | 5.0 (4.2–6.0) |
ABI | ||||||
≤ 0.80 | 24 | 6 | 30.9 (13.8–69.3) | 31 | 7 | 23.7 (11.3–49.9) |
(0.80–0.90] | 18 | 8 | 52.5 (26.2–105.2) | 56 | 4 | 6.0 (2.2–16.0) |
(0.90–1.00] | 71 | 8 | 10.5 (5.2–21.0) | 242 | 20 | 7.6 (4.9–11.8) |
(1.00–1.10] | 278 | 34 | 11.6 (8.3–16.2) | 590 | 46 | 6.9 (5.2–9.3) |
(1.10–1.20] | 461 | 42 | 8.3 (6.2–11.3) | 708 | 31 | 3.8 (2.6–5.3) |
(1.20–1.30] | 349 | 36 | 8.7 (6.2–12.0) | 423 | 19 | 3.9 (2.5–6.1) |
>1.30 | 149 | 11 | 6.2 (3.4–11.2) | 160 | 6 | 2.9 (1.3–6.5) |