Table 1.
Baseline demographic and clinical characteristics of study population by quartiles of the central retinal artery equivalent
| Variable | CRAE 1Q: ≤135.1μm (n=488) |
CRAE 2Q: 135.1–144.5μm (n=584) |
CRAE 3Q: 144.5–153.4μm (n=695) |
CRAE 4Q: ≥153.4μm (n=748) |
P |
|---|---|---|---|---|---|
| Mean (SD) | |||||
| Age (years) | 62.2 (10.0) | 60.0 (9.4) | 58.4 (8.4) | 57.8 (8.59) | <0.001 |
| SBP, Visit 1 (mmHg) | 117.5 (11.6) | 114.5 (12.1) | 112.0 (11.8) | 110.0 (13.0) | <0.001 |
| DBP Visit 1 (mmHg) | 70.8 (8.5) | 69.6 (8.6) | 68.5 (8.3) | 66.5 (8.6) | <0.001 |
| SBP, Visit 2 (mmHg) | 116.9 (11.8) | 114.4 (12.3) | 111.9 (12.3) | 108.6 (13.2) | <0.001 |
| DBP Visit 2 (mmHg) | 70.2 (8.4) | 69.4 (8.6) | 68.0 (8.5) | 65.4 (8.6) | <0.001 |
| Total cholesterol (mg/dl) | 195.5 (35.8) | 194.5 (34.4) | 196.7 (33.6) | 194.6 (36.2) | 0.626 |
| HDL cholesterol (mg/dl) | 53.0 (15.7) | 52.8 (15.2) | 51.8 (15.2) | 52.5 (15.7) | 0.566 |
| Triglycerides (mg/dl) | 122.7 (73.3) | 124.9 (67.6) | 133.2 (83.6) | 124.7 (86.6) | 0.087 |
| Glucose (mg/dl) | 99.7 (23.9) | 98.1 (16.6) | 100.0 (27.1) | 101.2 (31.6) | 0.183 |
| BMI (kg/m2) | 27.1 (4.8) | 27.2 (4.8) | 27.3 (4.9) | 27.2 (5.2) | 0.878 |
| n (%) | |||||
| Female | 221 (45.3) | 277 (47.4) | 368 (53.0) | 445 (59.5) | <0.001 |
| Race/ethnicities | |||||
| White | 263 (53.9) | 269 (46.1) | 309 (44.5) | 287 (38.4) | <0.001 |
| African–American | 66 (13.5) | 115 (19.7) | 131 (18.9) | 168 (22.5) | |
| Hispanic | 88 (18.0) | 112 (19.2) | 164 (23.6) | 195 (26.1) | |
| Chinese American | 71 (14.6) | 88 (15.1) | 91 (13.1) | 98 (13.1) | |
| Prevalence of diabetes | 28 (5.8) | 30 (5.1) | 43 (6.2) | 61 (8.2) | 0.123 |
| Current smoker | 46 (9.4) | 69 (11.8) | 99 (14.2) | 149 (19.9) | <0.001 |
1Q–4Q, lowest to highest quartiles; CRAE, the central retinal artery equivalent; HDL, high-density lipoprotein cholesterol.