Table 1.
Descriptive statistics [either mean (standard deviation) or percentage] for the multi-ethnic study of atherosclerosis (MESA), the study of fat redistribution and metabolic change in HIV infection (FRAM) and the FRAM controls for all participants with at least one valid carotid intimal medial thickness ultrasound reading
| MESA Controls (n = 5,521) | FRAM HIV+ (n = 433) | FRAM Controls (n = 228) | |
|---|---|---|---|
| Number of images read by readera | |||
| Reader # 810 | 1,253 (22.2%) | 0 (0%) | 104 (45.6%) |
| Reader # 815 | 2,224 (39.3%) | 0 (0%) | 0 (0%) |
| Reader # 816 | 216 (3.8%) | 0 (0%) | 0 (0%) |
| Reader # 817 | 651 (11.5%) | 0 (0%) | 0 (0%) |
| Reader # 818 | 919 (16.6%) | 0 (0%) | 0 (0%) |
| Reader # 819 | 236 (4.2%) | 0 (0%) | 0 (0%) |
| Reader # 824 | 134 (2.4%) | 175 (34.7%) | 0 (0%) |
| Reader # 825 | 0 (0%) | 0 (0%) | 73 (32.0%) |
| Reader # 827 | 0 (0%) | 0 (0%) | 51 (22.4%) |
| Reader # 828 | 0 (0%) | 330 (65.3%) | 0 (0%) |
| Cohort characteristics | |||
| Age (years) | 61.3 (9.3) | 49.0 (7.7) | 45.2 (3.7) |
| Male | 47.2% | 60.5% | 50.1% |
| African American | 31.4% | 42.3% | 43.4% |
| Hispanic American | 25.1% | 7.2% | 8.8% |
| Known HIV infection | 0% | 100% | 0% |
| Current smoker | 14.7% | 36.3% | 11.4% |
| Past smoker | 38.8% | 24.3% | 21.5% |
| Diabetic | 13.7% | 8.7% | 7.5% |
| Systolic blood pressure (mmHG) | 125.8 (20.9) | 125.6 (17.6) | 120.7 (16.5) |
| Diastolic blood pressure (mmHG) | 72.1 (10.2) | 77.7 (10.1) | 75.3 (9.8) |
| Total cholesterol (mg/dl) | 194.6 (36.3) | 188.2 (47.8) | 198.2 (39.4) |
| HDL cholesterol (mg/dl) | 51.0 (15.0) | 46.5 (16.8) | 54.7 (16.1) |
| Internal carotid intima media thickness (mm) | 1.07 (0.59) | 1.17 (0.50) | 0.89 (0.20) |
| Common carotid intima media thickness (mm) | 0.87 (0.19) | 0.88 (0.16) | 0.80 (0.13) |
a
Some images were read more than once so number of readings > number of subjects