Table 4. Relative risk according to the clinical factors.
| Characteristics | 1Odds Ratio | P |
| Age at surgery | ||
| ≥10a (n=38) | 1.633 | 0.268 |
| <10a (n=97) | ||
| Preoperative angle | ||
| ≥20 PD (n=92) | 1.095 | 0.690 |
| <20 PD (n=43) | ||
| Preoperative FCGX | ||
| Good to fair (n=66) | 1.720 | 0.182 |
| Poor (n=69) | ||
| Accompanied vertical strabismus surgery | ||
| - (n=117) | 1.120 | 0.807 |
| + (n=18) | ||
| Surgery sequence | ||
| Secondary surgery (n=9) | 1.143 | 0.862 |
| Primary surgery (n=126) | ||
| Type of surgery | ||
| BLR recession (n=114) | 1.136 | 0.834 |
| R&R (n=21) | ||
| Orthoptic treatment | ||
| - (n=10) | 1.303 | 0.726 |
| + (n=125) | ||
| Myopic refractive error with spectacle wear | ||
| - (n=61) | 1.772 | 0.081 |
| + (n=74) |
PD: prism diopter; FCGX: fusion control grade of the exodeviation; BLR: bilateral lateral rectus recession; R&R: monocular recess-resect surgery;1Cox proportional hazard model.