Table 1.
Baseline characteristics of women by quartile of baseline contrast sensitivity (N=1352)
| Lowest quartile (1.4-22.0) (N=340) |
2nd quartile (22.1-28.9) (N=338) |
3rd quartile (28.9-40.8) (N=338) |
Highest quartile (40.9-147.0) (N=336) |
p-value | |
|---|---|---|---|---|---|
| Age, mean (SD), y | 78.7 (3.6) | 77.5 (3.2) | 77.6 (3.3) | 77.1 (3.0) | <0.0001 |
| African American, % | 12.9% | 14.2% | 11.5% | 8.6% | 0.048 |
| Education, mean (SD), y | 12.9 (2.6) | 12.6 (2.5) | 13.0 (2.4) | 13.1 (2.6) | 0.14 |
| Self-reported health (exc/good), % | 84.7% | 88.2% | 86.4% | 87.8% | 0.36 |
| Body Mass Index, mean (SD), kg/m2 | 27.2 (4.8) | 27.8 (4.8) | 27.5 (4.6) | 28.0 (5.0) | 0.12 |
| Stroke, % | 3.8% | 2.4% | 3.9% | 1.8% | 0.26 |
| Hypertension, % | 40.0% | 39.4% | 34.3% | 29.5% | 0.002 |
| Myocardia Infarction, % | 3.2% | 3.0% | 0.9% | 2.1% | 0.13 |
| Diabetes, % | 5.9% | 8.0% | 2.7% | 3.6% | 0.021 |
| Smoking, % | 2.9% | 4.1% | 2.4% | 3.3% | 0.86 |
| Alcohol use in the past month, % | 44.4% | 45.0% | 49.6% | 42.0% | 0.82 |
| Depression (GDS>=6), % | 7.7% | 4.1% | 5.6% | 4.2% | 0.10 |
| Geriatrics Depression Score, mean (SD) | 1.8 (2.3) | 1.5 (2.0) | 1.6 (2.1) | 1.4 (1.8) | 0.19 |
| mMMSE (0-26), mean (SD) | 24.9 (1.4) | 24.9 (1.3) | 25.0 (1.3) | 25.2 (1.1) | 0.012 |
| Trails B, mean (SD) | 149.1 (80.7) | 136.2 (64.0) | 127.1 (51.5) | 125.8 (55.9) | <0.0001 |
Abbreviations: GDS, Geriatrics Depression Score; mMMSE, modified Mini-Mental State Examination