Table 3. Uterine contractility rate according to pregnancy outcomes.
Variable Group A Group B Group C Group D
Ongoing pregnancy 1.07 0.92 1.07 1.89
No gestation 1.21 1.03 1.02 1.02
(CI), p -value* (-0.5, 0.80), 0.9 (-0.4, 0.69), 0.68 (-0.52, 0.42), 0.81 (-1.4, -0.50), 0.009

Values are presented as mean of uterine contractions/minute, unless otherwise stated
CI: confidence interval
*Wilcoxon test