Table 3.
Frequencies of Study Subjects According to the DKK-1 Quartile Group.
| DKK-1 quartile | Healthy controls n, (%)‡ | Atrophic AMD n, (%)‡ | Exudative AMD n, (%)‡ |
|---|---|---|---|
| Q1 | 12 (10.81) | 9 (19.57) | 50 (39.06) |
| Q2 | 24 (21.62) | 9 (19.57) | 39 (30.47) |
| Q3 | 31 (27.93) | 13 (28.26) | 27 (21.09) |
| Q4 | 44 (39.64) | 15 (32.60) | 12 (9.38) |
| Total | 111 | 46 | 128 |
DKK-1 = dickkopf-1; AMD = age-related macular degeneration.
Q1, < 393.79; Q2, 393.80~527.73; Q3, 527.74~737.18, and Q4 > 737.19 pg/mL.
‡% of total in quartile.
Values were expressed as the number (%); Chi-square test for trend; χ 2 = 71.25, P < 0.001.