Table 1.

Lin’s Correlation Coefficients Between the Universal Goniometer and Smartphone Apps.

Characteristic	Lin’s Correlation	CI	P Value
UG-Gonio	0.931	0.911-0.946	<.001
UG-Clino	0.908	0.881-0.929	<.001
UG-DrG	0.935	0.915-0.950	<.001

Abbreviations: CI, confidence interval; UG, universal goniometer.