Smartphone usage duration is not associated with increased pain or proprioception deficit in young adults with chronic mechanical low back pain: a cross-sectional study

Bulletin of Faculty of Physical Therapy

Table 1 Differences in the change magnitude of visual analog scale (VAS) and angle of repositioning error (RE) between the addict and non-addict participants

Change magnitude		Group	Mean	95% CI		P value
Change magnitude		Group	Mean	Lower	Upper	P value
10 min	VAS	Addict (n = 29)	.78 ± 1.00	−.56	.68	.842
	VAS	Non-addict (n = 29)	.72 ± 1.34	−.56	.68	.842
	RE	Addict (n = 29)	−.20 ± 1.62	−1.52	.39	.242
	RE	Non-addict (n = 29)	.37 ± 2.00	−1.52	.39	.242
30 min	VAS	Addict (n = 29)	.79 ± 1.44	−1.34	.70	.530
	VAS	Non-addict (n = 29)	1.11 ± 2.34	−1.34	.70	.530
	RE	Addict (n = 29)	−.17 ± 1.76	−1.03	.85	.855
	RE	Non-addict (n = 29)	−.09 ± 1.82	−1.03	.85	.855