Differences and Correlations of Anxiety, Sleep Quality, and Pressure-Pain Threshold between Patients with Chronic Low Back Pain and Asymptomatic People

Table 3

Differences in the state-trait anxiety inventory scores between patients with CLBP and asymptomatic people (M ± SD).

	Chronic low back pain (n = 40)	Asymptomatic (n = 40)	t
State anxiety	41.64 ± 9.88	36.69 ± 8.31	−2.496	0.015
Trait anxiety	44.00 ± 7.83	42.67 ± 9.51	−0.695	0.489

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