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Table 1 Comparison between the 2 groups as regards ovarian vein data using Mann-Whitney’s U test

From: Role of multi-detector CT venography in evaluation of pelvic congestion syndrome

Variable Normal group (170) PCS group (30) Mann-Whitney U test
Mean Mean P value
Right ovarian vein diameter (mm) 3 7.1 < 0.0001
Left ovarian vein diameter (mm) 3.1 7.6 < 0.0001