Table 2.
Demographic and Genetic Characteristics of the Regression Discontinuity Analysis Sample for Individuals Born Before the Cutoff (n = 11556)
| Variable | Statistic | All (n = 11,556) | High Genetic Risk of Myopia (N = 5762) | Low Genetic Risk of Myopia (N = 5794) | P |
|---|---|---|---|---|---|
| Age | Median (IQR) | 54.92 (53.75 to 56.00) | 54.92 (53.83 to 56.00) | 54.92 (53.75 to 56.00) | 3.50E-01 |
| Female | N (%) | 6539 (56.6%) | 3285 (57.1%) | 3254 (56.2%) | 3.40E-01 |
| Wears Glasses | N (%) | 10,956 (94.8%) | 5476 (95.1%) | 5480 (94.6%) | 3.10E-01 |
| University or College degree | N (%) | 4,462 (38.6%) | 2,411 (41.8%) | 2,051 (35.4%) | 1.30E-12 |
| Refractive error (D) | Median (IQR) | −0.02 (−1.54 to 0.85) | −0.47 (−2.53 to 0.50) | 0.31 (−0.66 to 1.16) | <1.0E-99 |
| Age started wearing glasses (Years) | Median (IQR) | 40.00 (15.33 to 47.00) | 29.00 (13.00 to 45.00) | 41.00 (19.00 to 48.00) | 6.20E-55 |
| Townsend Deprivation Index | Median (IQR) | −2.03 (−3.55 to 0.44) | −1.99 (-3.56 to 0.41) | −2.06 (−3.54 to 0.47) | 8.80E-01 |
Participants were stratified based on the binary PRS for myopia, i.e., with high or with low genetic risk for myopia.