Table 1. Comparison of the Baseline Variables in the Intervention and Control Groups^a.

Quantitative Variables	Values		P Value
	Intervention	Control
Age, y b	33.65 ± 4.94	34.48 ± 5.73	0.247
Height, cm c	162.40 ± 5.40	159.26 ± 6.28	0.997
Weight, kg b	79.56 ± 11.98	79.17 ± 14.20	0.756
Body mass index, kg/m 2c	30.07 ± 4.11	31.12 ± 4.59	0.203
Gravid, no b	3.04 ± 0.99	3.34 ± 1.40	0.433
Gestational age, wk b	37.99 ± 0.73	38.05 ± 0.85	0.660

^aValues are expressed as mean ± SD.

^bMann-Whitney U Test.

^cIndependent-samples t-test.