Table 4.

Factors for decrease in spherical equivalent power of −2.5 D or less.

		Univariate Logistic Regression
		OR	95% CI		p-Value
Age (y)		0.47	0.31	0.72	0.0004
Female		0.85	0.30	2.37	0.750
Change in BMI		0.35	0.18	0.70	0.003
Continuous near-work time (min)		1.00	0.99	1.02	0.718
Continuous near-work time (digital devices) (min)		1.01	0.99	1.02	0.496
Already wearing glasses at first visit		3.47	1.08	11.13	0.037
Near-work time (min)		1.00	1.00	1.01	0.539
Near-work time (digital devices) (min)		1.00	1.00	1.01	0.189
Near-work time (books) (min)		0.99	0.97	1.00	0.145
Outdoor activity time (min)		0.99	0.98	1.01	0.257
Birth weight (kg)		1.00	1.00	1.00	0.783
Birth height (cm)		1.07	0.85	1.33	0.573
Parental myopia
	Only father	1.00		ref
	Only mother	0.28	0.07	1.15	0.077
	Both parents	0.28	0.09	0.90	0.033
Distance from the television (cm)		0.80	0.43	1.49	0.481
Near-working distance (cm)		0.98	0.90	1.06	0.583
Brightness of the bedroom while sleeping
	Bright	0.00	0.00		0.999
	Dim	1.11	0.37	3.34	0.854
	Dark	1.00		ref
Bedtime (hr)		0.72	0.32	1.64	0.438
Sleeping hours (hr)		1.13	0.53	2.41	0.761
Extracurricular activities (outside) (min)		0.55	0.12	2.52	0.441

OR: odds ratio; 95% CI: 95% confidence interval; ref: reference standard; BMI: body mass index.