Table 3. Comparisons of the clinical data from normal pregnant women and patients with adverse pregnancy outcomes.

Characteristics	Normal	GDM	Preeclampsia	Gestational hypertension
	n = 5175	n = 533	n = 99	n = 224
Age (year)	29.93±3.08	31.20±3.61 **	30.01±3.26	30.40±3.29 *
BMI (kg/m2)	21.79±3.12	23.42±3.30 **	23.65±3.39 **	24.57±3.80 **
Body weight (kg)	57.90±0.11	61.91±0.42 **	62.21±1.04 **	65.93±0.80 **
Gestational weeks (at Delivery)	39.05±1.32	38.61±1.21 **	38.76±1.20 *	38.32±1.71 **
TSH (mIU/L)
First Trimester	1.19±0.64	1.18±0.65	1.18±0.62	1.22±0.64
Third Trimester	1.54±0.66	1.54±0.70	1.71±0.74 *	1.58±0.69
FT4 (pmol/L)
First Trimester	15.09±1.44	14.73±1.43 **	14.78±1.57 *	14.85±1.39 *
Third Trimester	11.78±1.20	11.78±1.12	11.41±1.50 **	11.59±1.23 *

BMI: Body mass index; TSH: Thyroid-stimulating hormone;

*P<0.05,

**P<0.01, compared with normal group.