Table 9 Age distribution of constant exotropia
Year | ≤ 12 | 13–20 | 21–30 | 31–40 | 41–50 | > 51 |
|---|---|---|---|---|---|---|
2014 | 46 (24.3%) | 75 (39.7%) | 57 (30.2%) | 7 (3.7%) | 2 (1.1%) | 2 (1.1%) |
2015 | 90 (36.3%) | 76 (30.6%) | 63 (25.4%) | 16 (6.5%) | 2 (0.8%) | 1 (0.4%) |
2016 | 79 (41.4%) | 65 (34.0%) | 40 (20.9%) | 5 (2.6%) | 2 (1.0%) | 0 |
2017 | 82 (41.4%) | 53 (26.8%) | 41 (20.7%) | 15 (7.6%) | 5 (2.5%) | 2 (1.0%) |
2018 | 134(50.6%) | 72 (27.2%) | 47 (17.7%) | 8 (3.0%) | 2 (0.8%) | 2 (0.8%) |
2019 | 158(67.5%) | 45 (19.2%) | 21 (8.9%) | 6 (2.6%) | 4 (1.7%) | 0 |
2020 | 87(62.1%) | 31 (22.1%) | 15 (10.7%) | 5 (3.6%) | 2 (1.4%) | 0 |
χ2 | 128.211 | 28.211 | 43.728 | 12.554 | - | - |
P | < 0.01 | < 0.01 | < 0.01 | 0.051 | - | - |