Table 2 Pain visual analogue scale scores at different stages
Group | |||
|---|---|---|---|
Stage | TENS 1 | TENS 2 | TENS placebo |
Baseline | 7.0 ± 1.5 | 8.1 ± 1.2 | 6.6 ± 1.7 |
10 min | 6.2 ± 1.4 | 6.2 ± 2.0 | 8.3 ± 1.2 |
30 min | 6.3 ± 1.7 | 5.9 ± 1.9 | 8.8 ± 1.1 |
Difference (95% CI) | p* | ||
Baseline | |||
TENS 1-TENS 2 | −1.0 (− 2.2 to 0.1) | 0.079 | |
TENS 1-Placebo | 0.4 (− 0.7 to 1.6) | 0.668 | |
TENS 2-Placebo | 1.5 (0.3 to 2.7) | 0.009 | |
10 min | |||
TENS 1-TENS 2 | −0.4 (− 1.3 to 1.2) | 0.995 | |
TENS 1-Placebo | −2.1 (− 3.3 to – 0.8) | < 0.001 | |
TENS 2-Placebo | − 2.1 (− 3.3 to – 0.8) | < 0.001 | |
30 min | |||
TENS 1-TENS 2 | 0.4 (− 0.7 to 1.7) | 0.646 | |
TENS 1-Placebo | − 2.4 (− 3.7 to − 1.5) | < 0.001 | |
TENS 2-Placebo | −2.9 (− 4.1 to − 1.6) | < 0. 001 | |