Table 1 Demographic characteristics, the mean utility, and severity of pain scores of patients with CLBP under treatment by EA and NSAIDs.

Number of patients

41

59

Age, mean ± SD, y

41 ± 2.3

38 ± 4.4

0.75

Sex, no. (%)

Male

68.2

55.9

1.32

Female

31.8

44.1

Working (%)

Yes

70.5

71.3

0.82

No

19.5

18.7

Average monthly income, Dollar (mean ±SD)

457.14 ± 14.2

400 ± 25.7

2.3

Average time with CLBP, year (mean ± SD)

3.4 ± 1.8

2.3 ± 1.2

0.03

Utility, mean ± SD, (EQ-5D)

0.70 ± 0.14

0.63 ± 0.2

0.04

Severity of pain, mean ± SD, (0–1 VAS)

0.31 ±0.17

0.37 ±0.21

0.39