表 1.

两组患者基本资料

General data of the two groups of patients (Mean±SD)

Basic items	NVD group (n=56)	VD group (n=43)	P
NVD: Patients without a history of vaginal delivery; VD: Patients with a history of vaginal delivery.
Age(year)	35.36±3.58	36.74±4.12	0.077
Height(cm)	164.1±5.69	163.4±4.14	0.191
Weight(kg)	58.60±6.63	60.33±6.27	0.470
Dysmenorrhea(%)	9(16.07%)	2(4.65%)	0.107
Carsickness(%)	1(1.79%)	3(6.98%)	0.314