Table 2. Odds ratios and 95% confidence intervals of binary logistic regression analysis using participant characteristics as predictors for the risk of CTS.

	Unadjusted			Adjusted*
Variables	OR	95% CI	p	OR	95% CI	p
SAS score	1.022	1.011-1.032	<0.001	1.013	1.002-1.024	0.025
Daily smartphone usage time (h/day)	1.292	1.164-1.434	<0.001	1.229	1.100-1.374	0.001
CTS: Carpal tunnel syndrome; OR: Odds ratio; CI: Confidence interval; SAS: Smartphone Addiction Scale; * Model c2=33.770 p<0.001; Nagelkerke R2=0.107, Hosmer and Lemeshow test p=0.370.