Table 2: Distribution frequencies of the three groups according to the maternal factors.

20–34 years >35 years value Hypocoiled 99 5 0.041* Normocoiled 702 11 Hypercoiled 90 5 0.003** UCI normal () PIH () value Hypocoiled 93 (10.9%) 24 (16.8%) 0.030 Normocoiled 681 (79.5%) 102 (71.3%) Hypercoiled 83 (9.7%) 17 (11.9%) 0.273 UCI normal () Diabetic () value Hypocoiled 114 (11.5%) 3 (30%) 0.051 Normocoiled 779 (78.7%) 4 (40%) Hypercoiled 97 (9.8%) 3 (30%) 0.035*