Table 3. Factors associated with the outcome analysed by ordinal logistic regression analysis using original data.

Factors	Model 1		Model 2		Model 3
	OR	95% CI	OR	95% CI	OR	95% CI
Sex (male)	1.00	0.70 to 1.42	1.06	0.75 to 1.50	1.02	0.72 to 1.47
Stereoacuity (log)			1.22	0.99 to 1.51	1.31	1.10 to 1.56
Adhering to the recommended time	0.79	0.54 to 1.14	0.78	0.54 to 1.13	0.93	0.62 to 1.40
Successful DD time halving	0.63	0.43 to 0.92	0.63	0.43 to 0.92
Strabismus angle at distance (PD)	1.01	0.99 to 1.02			1.02	1.00 to 1.03
Strabismus angle at near (PD)	1.00	0.99 to 1.02	0.99	0.97 to 1.02	1.01	1.00 to 1.02
Duration from onset to visit within 3 months	0.93	0.62 to 1.38	0.94	0.63 to 1.41	0.86	0.57 to 1.28
Refractive error (D)	1.00	0.94 to 1.06	1.00	0.94 to 1.06	0.99	0.93 to 1.05
Anisometropia 1.5 D or greater	1.16	0.53 to 2.52	1.19	0.55 to 2.57	0.90	0.39 to 2.04
Using prism	0.97	0.63 to 1.50	0.93	0.61 to 1.44	0.84	0.55 to 1.30
History of strabismus or amblyopia	0.81	0.45 to 1.46	0.90	0.51 to 1.61	1.03	0.57 to 1.83

Model 1: Aadjusted for Aage and Sstereoacuity. Model 2: Aadjusted for age and strabismus angle at distance. Model 3: Aadjusted for age and successful DD time halving.

DdioptresDD timethe amount of time spent using hand-held digital devices per dayPDprism dioptres