Pregnant  Groups Result of transfer Total     negative     positive   Frequency      expected Placebo Control      n= 116)       93  86.6        23              29.4 116 116.0 Frequency      expected TENS experiment  (n= 117)       81  87.4        36              29.6 117 117.0 X² = 3.69, df = 1, P = 0.038

Table 2: Relation of pregnancy rate between control and TENS experiment Groups by using χ2 (Chi- square) tests.

Goto home»