Table 2.

Comparison of the index of T^ins, T^exp, T^rate, and T^exc between the two groups.

	NCLBP group (N = 31)	HC group (N = 32)	t/Z	P value	95% CI
T ins	3.80 ± 0.68	4.66 ± 1.02	−3.90	<0.001a#	(−1.30∼−0.42)
T exp	2.50 (2.20–2.70)	2.80 (2.32–3.20)	−2.79	0.005b#	NA
T rate	0.57 ± 0.11	0.65 ± 0.18	−2.03	0.047a#	(−0.15∼0)
T exc	51.37 ± 11.57	56.40 ± 16.23	−1.42	0.161a	(−12.15∼2.09)

^a t-value; ^bZ-value; ^#P value of less than 0.05.