Table I.

General information of objects.

Items	Control group (n=65)	Observation group (n=65)	t/χ2	p
Gender(male/female)	44/21	46/19	0.036	0.849
Age (years)	30~50	30~55
Average age (years)	40.38±6.63	40.83±6.73	0.384	0.702
Duration of disease (months)	11.65±5.46	11.28±5.37	0.390	0.698
BMI (Kg/m2)	23.63±3.25	23.89±3.48	0.440	0.661