Effects of Individualized Nutrition Guidance During Pregnancy on Pregnancy Outcomes and Neonatal Birth Weight

doi:10.3877/cma.j.issn.1673-5250.2014.01.021

Objective

To investigate the effects of individualized nutrition guidance during pregnancy on pregnancy outcomes and neonatal birth weight.

Methods

From June 2011 to June 2012, a cohort of 300 pregnant women with single fetal without pregnancy complications were enrolled and divided into two groups randomly. Study group (n=150) received individualized nutrition guidance during pregnancy and control group (n=150) received regular physical examination only. There had no significant differences between two groups among age, weight and height before pregnancy, and body mass index (BMI) . The pregnancy outcomes and neonatal birth weight were compared between the two groups. The study protocol was approved by the Ethical Review Board of Investigation in Maternal and Child Health Care Hospital of Gansu Province. Informed consent was obtained from all participates.

Results

There were obviously difference between study group and control group among cesarean section modes, weight gain during pregnancy and neonatal birth weight (χ²=6.72, 7.19, 16.16, P<0.05) ,but there was no obvious difference on the lateral episiotomy rate (χ²=0.21, P>0.05) .

Conclusions

Individualized nutrition guidance during pregnancy is beneficial to improving pregnancy outcomes and to controlling the weight gain during pregnancy and neonatal birth weight.

Key words: Individualized medicine, Pregnancy outcome, Weight gain, Peripartum period, Infant, newborn

表1 两组患者的一般情况比较（±s）

Table 1 Comparison of general information between two groups （±s）

组别	n	年龄(岁)	孕前体质量(kg)	身高(cm)	孕前BMI(kg/m²)
对照组	150	28.19±3.48	54.98±7.77	160.64±4.81	21.42±4.31
研究组	150	28.58±3.71	53.83 ± 7.10	159.87±4.99	20.73 ± 3.92
t		0.94	1.34	1.36	1.45
P		>0.05	>0.05	>0.05	>0.05

表1 两组患者的一般情况比较（±s）

Table 1 Comparison of general information between two groups （±s）

组别	n	年龄(岁)	孕前体质量(kg)	身高(cm)	孕前BMI(kg/m²)
对照组	150	28.19±3.48	54.98±7.77	160.64±4.81	21.42±4.31
研究组	150	28.58±3.71	53.83 ± 7.10	159.87±4.99	20.73 ± 3.92
t		0.94	1.34	1.36	1.45
P		>0.05	>0.05	>0.05	>0.05

表2 两组孕妇分娩方式比较[n（％）]

Table 2 Comparison of delivery modes between two groups [n（%）]

组别	n	阴道分娩		剖宫产分娩
研究组	150	112(74.66)		38(25.34)
对照组	150	91(60.66)		59(39.34)
χ²			6.72
P			<0.05

表2 两组孕妇分娩方式比较[n（％）]

Table 2 Comparison of delivery modes between two groups [n（%）]

组别	n	阴道分娩		剖宫产分娩
研究组	150	112(74.66)		38(25.34)
对照组	150	91(60.66)		59(39.34)
χ²			6.72
P			<0.05

表3 两组孕前BMI正常孕妇孕期体质量增长情况比较[n（%）]

Table 3 Comparison of body weight gain during pregnancy for the pregnant women with normal BMI before pregnancy[n（% ）]

组别	孕前BMI正常(n)	孕期增重
组别	孕前BMI正常(n)	增重过少	正常	增重过多
研究组	118	3(2.55)	107(90.68)	8 (6.77)
对照组	113	7(6.20)	88(77.88)	18(15.92)
χ²			7.19
P			<0.05

表3 两组孕前BMI正常孕妇孕期体质量增长情况比较[n（%）]

Table 3 Comparison of body weight gain during pregnancy for the pregnant women with normal BMI before pregnancy[n（% ）]

组别	孕前BMI正常(n)	孕期增重
组别	孕前BMI正常(n)	增重过少	正常	增重过多
研究组	118	3(2.55)	107(90.68)	8 (6.77)
对照组	113	7(6.20)	88(77.88)	18(15.92)
χ²			7.19
P			<0.05

表4 两组新生儿出生体质量的比较[n（％）]

Table 4 Comparison of birth weight between two groups [n（％）]

组别	n	LBW儿	正常	巨大儿
研究组	150	1(0.67)	144(96.00)	5 (3.33)
对照组	150	9(6.00)	123(82.00)	18(12.00)
χ²			16.16
P			<0.05

表4 两组新生儿出生体质量的比较[n（％）]

Table 4 Comparison of birth weight between two groups [n（％）]

组别	n	LBW儿	正常	巨大儿
研究组	150	1(0.67)	144(96.00)	5 (3.33)
对照组	150	9(6.00)	123(82.00)	18(12.00)
χ²			16.16
P			<0.05

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