A Pilot Study of Total Energy, Three Major Nutrients and Food Intakes among Pregnant Women: A Comparison with Nulliparous and Multiparous Women in Miyagi, Japan : Table 1

Table 1: Characteristics of subjects in the parity.
†P value was calculated by student's t-test for continious variable and the chisqure test for categorical variables to test differences between the groups. Stastical significance was defined as p.

	Nulliparas	Multiparas
	(n = 52)	(n = 61)	P†
Mother
Age(Years)	29.8±4.8	32.0±3.7	0.006
Prepregnancy Body Mass Index(kg/m²)	21.3±3.1	21.0±3.7	0.61
Gastational weight gain(kg)	10.2±4.3	9.5±3.5	0.35
Occupation (%)
Outside work	4602	2935	0.06
Housewife	53.9	70.5
Smoking (%)
Never	57.7	70.5
Former	40.4	29.5	0.24
Current	1.9	0.0
Infant
Gestational weeks(w)	39.5±1.0	38.9±1.3	0.01
Birth weight	3047.1±334.0	3080.8±348.3	0.60