Table 1. Patient Demographic Data.

	Aceclofenac CR	Aceclofenac	p value
Number of patients (n)	50	50
Gender (male:female)	12:38	12:38	1.000*
Age	57.6±11.3	56.9±11	0.799†
Height (cm)	160.2±8.1	159.6±7.7	0.695†
Weight (kg)	62.3±8.7	61.6±8.7	0.978†
Duration of back pain	50.0±55.1	91.6±119.0	0.184†

CR, controlled release.

^*Chi-square test, ^†Unpaired t-test.