Umbilical Coiling Index as a Marker of Perinatal Outcome: An Analytical Study

Table 3

Distribution frequencies of the three groups according to the maternal factors.

	Normal (𝑁=901)	Preterm (𝑁=99)	𝑃 value
Hypocoiled	97 (10.8%)	20 (20.2%)	0.004*
Normocoiled	718 (79.7%)	65 (65.7)
Hypercoiled	86 (9.5%)	14 (14.1%)	0.060
UCI	Normal (𝑁=987)	Abruption (𝑁=13)	𝑃 value
Hypocoiled	112 (11.3%)	5 (38.5%)	0.019*
Normocoiled	775 (78.5%)	8 (61.5%)
Hypercoiled	100 (10.1%)	0 (0%)	0.310
UCI	Normal (𝑁=950)	Oligohydramnios (𝑁=50)	𝑃 value
Hypocoiled	105 (11.1%)	12 (24.0%)	0.013*
Normocoiled	749 (78.8%)	34 (68.0%)
Hypercoiled	96 (10.1%)	5 (27.8%)	0.015*
UCI	Normal (𝑁=950)	Polyhydramnios(𝑁=50)	𝑃 value
Hypocoiled	113 (11.5%)	4 (22.2%)	0.076
Normocoiled	774 (78.8%)	9 (50.0%)
Hypercoiled	95 (9.7%)	5 (27.8%)	0.015*