TENS treatment obtained a sample size of 16 patients, with a 90% test power and 5% significance level. Considering a 20% loss during follow-up, the total sample size achieved was 20 women, equally distributed between the two groups.
TENS treatment obtaineda sample size of 16 patients, with a 90% test power and 5%significance level. Considering a 20% loss during follow-up, the totalsample size achieved was 20 women, equally distributed betweenthe two groups.