Table 1. Baseline characteristics of each cohort in this study.
| Parameters |
Chaoshan |
Guangzhou |
Combined Han Chinese4 |
KORA |
TwinsUK |
||||
|---|---|---|---|---|---|---|---|---|---|
| Cases1 | Controls | Cases2 | Controls | Cases | Controls | Cases3 | Controls | Cases3 | |
| N |
96 |
96 |
300 |
308 |
396 |
404 |
526 |
413 |
562 |
| Sex (%Male) |
65.63 |
65.63 |
49.17 |
63.64 |
53.15 |
64.11 |
50.38 |
48.42 |
16.20 |
| Mean age (SD) |
21.80 (1.27) |
21.68 (1.30) |
22.19 (1.67) |
21.66 (1.54) |
22.10 (4.77) |
21.67 (1.48) |
49.25(10.21) |
57.23 (10.72) |
46.46 (14.99) |
|
Refraction (Diotpers) |
|
|
|
|
|
|
|
|
|
| OD |
−6.54±1.31 |
0.27±0.51 |
−7.82±0.87 |
0.19±0.48 |
−7.51±1.14 |
0.21±0.49 |
−2.50±1.87 |
0.23±0.42 |
−3.26±2.73 |
| OS | −6.28±1.84 | 0.33±0.44 | −7.79±1.12 | 0.31±0.44 | −7.42±1.48 | 0.31±0.44 | −2.49±1.87 | 0.23±0.42 | −3.16±2.67 |
1. Cases with moderate to high myopia were defined as SEM ≤ −4.0 D. 2. Cases with high myopia were defined as SEM ≤ −6.0 D 3. Cases with myopia were defined as SE< −0.5 D. 4. Han Chinese group=Chaoshan + Guangzhou. 5. European group=KORA+TwinsUK 2.