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. 2015 Jul 29;10(7):e0133514. doi: 10.1371/journal.pone.0133514

Table 3. Between group differences based on time for longitudinal, oblique transverse planes of uterine AP measurements or RI and PI measurements of the uterine and superficial arteries (per protocol analysis, N = 49).

Outcomes Group Day 3 Week 2 Week 4 Week 6 F-statistic p-value
Mean (95% CI) Mean (95% CI) Mean (95% CI) Mean (95% CI)
Uterine AP measurement
Longitudinal C.striatus 73.25 55.48 41.28 29.26 23.6(1) <0.001*
(N = 25) (69.60, 76.90) (52.58, 58.39) (39.28, 43.28) (26.84, 31.69)
Placebo 74.92 60.61 50.69 40.55
(N = 24) (71.19, 78.65) (57.65, 63.58) (48.65, 52.74) (38.08, 43.03)
Oblique Transverse plane C.striatus 76.99 58.94 44.32 30.74 10.9(1) 0.002*
(N = 25) (73.18, 80.80) (56.17, 61.71) (41.82, 46.81) (28.43, 33.05)
Placebo 74.21 61.34 52.60 41.25
(N = 24) (70.32, 78.10) (58.51, 64.17) (50.05, 55.14) (38.89, 43.61)
Uterine artery RI C.striatus 0.44 0.58 0.69 0.81 1.4(1) 0.248*
(N = 25) (0.40, 0.48) (0.55, 0.61) (0.66, 0.71) (0.78, 0.84)
Placebo 0.43 0.54 0.67 0.80
(N = 24) (0.39, 0.47) (0.51, 0.58) (0.64, 0.70) (0.77, 0.83)
Uterine artery PI C.striatus 0.91 1.18 1.35 1.78 5.2(1) 0.027*
(N = 25) (0.85, 0.96) (1.11, 1.24) (1.29, 1.41) (1.72, 1.83)
Placebo 0.80 1.39 1.40 1.73
(N = 24) (0.74, 0.85) (1.03, 1.16) (1.34, 1.45) (1.68, 1.78)
Superficial skin artery RI C.striatus 0.42 0.57 0.68 0.80 1.6(1) 0.213*
(n = 25) (0.38, 0.46) (0.54, 0.60) (0.65, 0.71) (0.77, 0.83)
Placebo 0.45 0.54 0.62 0.76
(N = 24) (0.41, 0.50) (0.51, 0.57) (0.59, 0.66) (0.73, 0.79)
Superficial skin artery PI C.striatus 0.90 1.14 1.33 1.76 3.0(1) 0.089*
(N = 25) (0.83, 0.96) (1.09, 1.20) (1.26, 1.40) (1.67, 1.85)
Placebo 0.84 1.10 1.34 1.62
(N = 24) (0.77, 0.90) (1.04, 1.16) (1.27, 1.41) (1.53, 1.71)

AP, anterior posterior; RI, resistive index; PI, pulsatility index.

*Repeated measure ANOVA was applied followed by pairwise comparison with Bonferroni confidence interval adjustment. Assumption of normality, homogeneity of variances and compound symmetry were checked and fulfilled.