[Retracted] Clinical Comparison of Preterm Birth and Spontaneous Preterm Birth in Severe Preeclampsia

Table 5

Basic information.

	Observation group 1	Observation group 2	Control group
Age (years)	28.65  4.97	32.65  4.67	30.63  5.67	0.003
Maximum systolic blood pressure (mmHg)	157.36  17.46	159.34  16.76	165.39  22.13	<0.001
Maximum diastolic blood pressure (mmHg)	106.65  13.21	111.61  12.93	110.59  12.03	0.003
Urine protein quantification	4.73  4.27	5.93  5.27	5.06  5.11	0.231
Earliest gestational age	32.19  3.97	35.19  5.07	32.19  4.93	0.510
Gestational age	36.54  2.36	38.54  3.36	34.88  2.37	<0.001
Primipara	76.65%	60.35%	65%	<0.001