Variable | Univariate linear regression | ||
Regression coefficient | R2 | P values | |
Preoperative factors | |||
Age (years) | 0.009 | 0.072 | 0.166 |
Gender (male 0, female 1) | 0.120 | 0.077 | 0.153 |
Preoperative logMAR BCVA | 0.314 | 0.193 | 0.019 |
Macular hole size | 0.0006 | 0.209 | 0.014 |
Postoperative factors | |||
Time until ELM bridging | 0.034 | 0.457 | <0.001 |
Time until glial cell disappearance | 0.006 | 0.163 | 0.033 |
Area of DONFL at 3 years | −0.0163 | 0.411 | 0.683 |
Photoreceptor integrity at 3 years* | −0.119 | 0.233 | 0.009 |
*Photoreceptor integrity was defined as 3=ELM(+)/EZ(+)/CIZ(+), eyes with a reconstructed ELM, EZ and CIZ; 2=ELM(+)/EZ(+)/CIZ(−), eyes with a reconstructed ELM and EZ, but with a disrupted CIZ; 1=ELM(+)/EZ(−)/CIZ(−), eyes with a reconstructed ELM but with a disrupted EZ and CIZ.
BCVA, best-corrected visual acuity; CIZ, cone interdigitation zone; DONFL, dissociated optic nerve fibre layer; ELM, external limiting membrane; EZ, ellipsoid zone; logMAR, logarithm of the minimum angle of resolution.