Table 5.
New measurements in the EDIC protocol
| Systolic blood pressure ratio of resting ankle to arm |
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|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Prevalence of abnormal ankle-to-arm ratio (percent in any four ratios) |
Maximum intimal-medial thickness of common and internal carotid artery |
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| Age decade | n | Right | Left | Percent <0.8 | P (0.8) | Percent <1.4 | Percent either | n | Common (mm) | Internal (mm) | ||
| Women* | 20–29 | 154 | 1.08 ± 0.11 | 1.08 ± 0.13 | 2.6 | 0.9864 | 0.0 | 2.6 | 172 | 0.616 ± 0.073 | 0.583 ± 0.092 | |
| 30–39 | 289 | 1.11 ± 0.12 | 1.10 ± 0.13 | 2.8 | 0.1307 | 5.9 | 8.3 | 278 | 0.657 ± 0.081 | 0.632 ± 0.147 | ||
| 40–49 | 202 | 1.09 ± 0.12 | 1.07 ± 0.11 | 3.5 | 0.7093 | 1.5 | 5.0 | 178 | 0.696 ± 0.079 | 0.719 ± 0.226 | ||
| Men* | 20–29 | 117 | 1.07 ± 0.11 | 1.08 ± 0.10 | 2.6 | 2.6 | 5.1 | 125 | 0.636 ± 0.059 | 0.629 ± 0.083 | ||
| 30–39 | 351 | 1.11 ± 0.12 | 1.10 ± 0.12 | 1.1 | 3.7 | 4.8 | 350 | 0.684 ± 0.083 | 0.684 ± 0.114 | |||
| 40–49 | 241 | 1.13 ± 0.13 | 1.12 ± 0.14 | 4.1 | 3.7 | 7.9 | 211 | 0.745 ± 0.104 | 0.806 ± 0.261 | |||
Data are n, means ± SD, or %. Dorsalis pedis and posterior tibral pressures were combined using an algorithm of Hiatt et al. (51). P values are for men vs. women.
*
P value for trend in percent <0.8: women, 0.6171; men, 0.1513. P < 0.0001 for both common and internal intimal-medial thickness; all are from Wilcoxon’s rank-sum test after linear adjustment for covariance with age.