Ref (type) | Population | Outcome, Interventions | Results and statistical analysis | Effect size | Favours |
Pain | |||||
Systematic review |
42 women with primary dysmenorrhoea 2 RCTs in this analysis |
Pain relief by subjective assessment
18/31 (58%) with low-frequency TENS 15/32 (47%) with placebo TENS or tablet |
OR 1.8 95% CI 0.6 to 5.1 |
Not significant | |
Systematic review |
20 women with primary dysmenorrhoea Data from 1 RCT |
Pain relief
with low-frequency TENS with placebo TENS or tablet Absolute results not reported |
P <0.05 |
Effect size not calculated | low-frequency TENS |
Need for additional medication | |||||
Systematic review |
24 women with primary dysmenorrhoea Data from 1 RCT |
Mean number of additional tablets of analgesic used
3.7 with low-frequency TENS 6.8 with placebo TENS or tablet |
WMD –3.1 tablets 95% CI –5.5 tablets to –0.7 tablets Randomisation and blinding unclear |
Effect size not calculated | low-frequency TENS |