Table 7.
HRs and 95% CIs of Non‐SCD Based on C‐IMT Quartiles and Presence of Plaque in CHS
| Variable | First Quartile | Second Quartile | Third Quartile | Fourth Quartile | |
|---|---|---|---|---|---|
| Maximum C‐IMT | Range, mm | 0.57–0.99 | 0.99–1.31 | 1.31–1.77 | 1.77–4.26 |
| Model 1 | Reference | 1.07 (0.81–1.41) | 1.54 (1.20–1.99) § | 2.80 (2.20–3.56) † | |
| Model 2 | Reference | 1.04 (0.79–1.37) | 1.38 (1.06–1.78) ‡ | 2.12 (1.65–2.71) † | |
| Model 3 | Reference | 0.94 (0.71–1.24) | 1.18 (0.91–1.53) | 1.68 (1.31–2.15) † | |
| Maximum CCA‐IMT | Range, mm | 0.61–0.92 | 0.92–1.03 | 1.03–1.16 | 1.16–2.59 |
| Model 1 | Reference | 1.37 (1.04–1.80) ‡ | 1.81 (1.39–2.35) † | 2.59 (2.00–3.35) † | |
| Model 2 | Reference | 1.31 (0.99–1.72) | 1.58 (1.21–2.05)§ | 2.04 (1.57–2.64) † | |
| Model 3 | Reference | 1.16 (0.88–1.52) | 1.35 (1.04–1.76) ‡ | 1.61 (1.24–2.09) † | |
| Plaque | Absent | Present | |||
| Model 1 | Reference | 2.04 (1.72–2.42) | |||
| Model 2 | Reference | 1.69 (1.42–2.01) † | |||
| Model 3 | Reference | 1.47 (1.24–1.76) † |
Model 1: adjusted for age, sex, and race‐by‐center terms.
Model 2: model 1 plus education, hypertension, diabetes mellitus, Cornell voltage, coronary heart disease, heart failure, body mass index, high‐density lipoprotein and low‐density lipoprotein cholesterols, current drinking, and current smoking.
Model 3: model 2 plus time‐varying adjustors from model 2.
CCA‐IMT indicates common carotid artery intima‐media thickness; CHS, Cardiovascular Health Study; C‐IMT, carotid intima‐media thickness; HR, hazard ratio; and SCD, sudden cardiac death.
*
P<0.01.
†
P<0.001.
‡
P<0.05.
§
P<0.005.