Table. 1.

Patients’ demographic data and clinical characteristics by groups

Characteristic bTENS cTENS pTENS Total P valuea
Age
Mean ± SD 45.6 ± 9.4 43.2 ± 12.8 40.8 ± 11.5 43.3 ± 11.3 0.346
Median 45.0 43.0 40.0 44.0
Min-Max 24.0-64.0 24.0-63.0 20.0-64.0 20.0-64.0
Sex (%)
Female 16 (64.0) 13 (52.0) 18 (78.0) 47 (64.4) 0.165
Male 9 (36.0) 12 (48.0) 5 (22.0) 26 (35.6)
BMI (kg/m2)
Mean ± SD 28.6 ± 4.8 27.4 ± 4.1 29.9 ± 4.6 28.6 ± 4.6 0.173
Median 28.1 26.0 29.3 28.6
Min-Max 20.5-39.5 21.7-37.8 22.0-40.5 20.5-40.5
Occupation (%)
Retired 2 (8.0) 3 (12.0) 0 (0.0) 5 (7.0)
Housewife 12 (48.0) 9 (36.0) 11 (48.0) 32 (44.0)
Manual worker 5 (20.0) 5 (20.0) 5 (22.0) 15 (20.0)
Clerical worker 1 (4.0) 1 (4.0) 3 (13.0) 5 (7.0)
Student 0 (0.0) 1 (4.0) 1 (4.0) 2 (3.0)
Other 5 (20.0) 6 (24.0) 3 (13.0) 3 (4.0)

TENS: transcutaneous electrical nerve stimulation, bTENS: burst TENS, cTENS: conventional TENS, pTENS: placebo TENS, SD: standard deviation, Min: minimum, Max: maximum, BMI: body mass index.

aKruskal–Wallis test, analysis of variance test.

Korean J Pain 2021;34:217~228 https://doi.org/10.3344/kjp.2021.34.2.217
© Korean J Pain