160 Table 6.1: Patient characteristics for analysed patients Patient Characteristics Total Analysed: 64 women Patients per participating centre - Netherlands - Italy - Greece 33 (51.6%) 24 (37.5%) 7 (10.9%) Age (years, Mean, SD) 34.1 (6.3) BMI (median, IQR) 23.0 (3.75) Parity (n, %) - Nulliparous - Multiparous - Missing 34 (53.1%) 9 (14.1%) 11 (17.2%) Cycle duration (days, Mean, SD) 28.1 (1.7) Cycle day menses measurement (Mean, SD) 2.42 (1.13) Cycle day mid follicular measurement (Mean, SD) 8.33 (0.94) Cycle day late follicular measurement (Mean, SD) 12.31 (0.85) Cycle day early luteal measurement (Mean, SD) 16.33 (3.951) Cycle day late luteal measurement (Mean, SD) 27.50 (1.00) Uterine measurements - Uterine length (mm (Mean, SD)) - Uterine Height (mm (Mean, SD)) - Uterine Width (mm Mean, SD)) 71.44 (10.77) 35.96 (6.18) 63.10 (1.06) Endometrial thickness (mm (Median, IQR)) per Cycle Phase Menses: 2.00 (0) Mid Follicular: 5.34 (1.52) Late Follicular: 7.46 (2.77) Early Luteal: 10.02 (3.92) Late Luteal: 6.60 (2.44) Uterine contraction features: Tables 6.2 – 6.6 present an overview of the values found per contraction feature across the menstrual cycle phases, for the features of frequency, direction, velocity, amplitude and coordination. Contraction frequency, velocity and coordination differed significantly between menstrual phases. No significant differences were found between cycle phases for amplitude or direction. Contraction frequency: The overall values of contraction frequency per menstrual phase can be seen in Table 6.2. The highest mean contraction frequency (1.61 (SD 0.17), p<0.001) was found in the LF phase in the posterior wall. The phase with the lowest mean contraction frequency was the late luteal phase (1.28 (SD 0.12)
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