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. Author manuscript; available in PMC: 2022 Mar 15.
Published in final edited form as: Brain Res. 2021 Jan 7;1755:147263. doi: 10.1016/j.brainres.2020.147263

Table 1:

Demographic information and differences between experimental groups are shown. CLBP – Chronic low back pain; HC – healthy controls; VAS – Visual analog scale for pain; BDI – Beck Depression Inventory.

CLBP (n = 31) HC (n = 32) t or χ2 (df) p-value
Chronological Age (years) 50.7 (6.5) 50.8 (7.1) t(62)=0.04 0.967
Sex (% Female) 45.2 43.8 χ2(1)=0.01 0.910
Current Pain (VAS) 6.7 (1.8) 0 (0) t(62)=21.3 <0.001
Pain Duration (years) 16.3 (11.7) 0 (0) t(62)=7.9 <0.001
BDI 5.5 (5.2) 1.6 (2.7) t(62)=3.8 <0.001