Table 1

Linear regression for predictors of final visual acuity and visual improvement

Results of linear regression
Dependent variable	Predictors	β	SE	Std β	95% CI for β	p Value	R²
Final BCVA	(Constant)	0.130	0.259		−0.392 to 0.652	0.618	0.598
	Age	0.007	0.003	0.333	0.002 to 0.012	0.013
	Gender (M vs F)	0.018	0.042	0.049	−0.067 to 0.103	0.674
	Duration of disease (months)	−0.002	0.002	−0.147	−0.005 to 0.001	0.212
	Preoperative PED (Yes vs No)	−0.076	0.042	−0.206	−0.160 to 0.008	0.075
	Preoperative BCVA (LogMARc-Pre)	0.073	0.058	0.147	−0.044 to 0.190	0.216
	Preoperative SRF height (μm)	0.000	0.000	0.196	0.000 to 0.001	0.093
	Preoperative CFT	0.000	0.001	−0.031	−0.001 to 0.001	0.755
	Preoperative RCFT	0.050	0.154	0.086	−0.261 to 0.362	0.746
	Previous laser (Yes vs No)	0.033	0.036	0.094	−0.040 to 0.106	0.372
	Final CFT	−0.006	0.001	−0.527	−0.009 to −0.003	<0.001
	Final RCFT	−0.776	0.214	−0.613	−1.207 to −0.344	0.001
Improvement of BCVA	(Constant)	−0.130	0.259		−0.652 to 0.392	0.618	0.871
	Age	−0.007	0.003	−0.188	−0.012 to −0.002	0.013
	Gender (M vs F)	−0.018	0.042	−0.027	−0.103 to 0.067	0.674
	Duration of disease (months)	0.002	0.002	0.083	−0.001 to 0.005	0.212
	Preoperative PED (Yes vs No)	0.076	0.042	0.116	−0.008 to 0.160	0.075
	Preoperative BCVA (LogMARc-Pre)	0.927	0.058	1.055	0.810 to 1.044	<0.001
	Preoperative SRF height (μm)	0.000	0.000	−0.111	−0.001 to 0.000	0.093
	Preoperative CFT	0.000	0.001	0.027	−0.001 to 0.001	0.755
	Preoperative RCFT	−0.050	0.154	−0.048	−0.362 to 0.261	0.746
	Previous laser (yes vs no)	−0.033	0.036	−0.053	−0.106 to 0.040	0.372
	Final CFT	0.006	0.001	0.457	0.003 to 0.009	<0.001
	Final RCFT	0.776	0.214	0.347	0.344 to 1.207	<0.001

BCVA, best-corrected visual acuity; CFT, central foveal thickness; F, female; LogMARc-Pre, preoperative BCVA in logMAR; M, male; PED, pigment epithelial detachment; RCFT, relative CFT; SRF, subretinal fluid; Std β, standardised β.