Table 2.

Correlation analysis of uterine contraction and uterine microcirculation.

R	Contraction wave	Peak to peak value	Degree of contraction
Uterus microvessel diameter 5 min	−0.60ΔΔ	−0.33	−0.47ΔΔ
Uterus microvessel diameter 10 min	−0.63ΔΔ	−0.35	−0.48ΔΔ
Uterus microvessel diameter 20 min	−0.62ΔΔ	−0.43	−0.56ΔΔ
Uterus cap diameter 5 min	−0.62ΔΔ	−0.17	−0.34Δ
Uterus cap diameter 10 min	−0.58ΔΔ	−0.22	−0.41ΔΔ
Uterus cap diameter 20 min	−0.59ΔΔ	−0.11	−0.27

Note. ^ΔΔ P < 0.01,^Δ P < 0.05.