Table 2.

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

	20–34 years	>35 years	P value
Hypocoiled	99	5	0.041*
Normocoiled	702	11
Hypercoiled	90	5	0.003**
UCI normal	(N = 857)	PIH (N = 143)	P 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	(N = 990)	Diabetic (N = 10)	P value
Hypocoiled	114 (11.5%)	3 (30%)	0.051
Normocoiled	779 (78.7%)	4 (40%)
Hypercoiled	97 (9.8%)	3 (30%)	0.035*