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目的了解足月小样儿出生24个月内的身长和体重追赶现状。方法选取宁波市2011年10月1日—2014年1月1日出生的足月小样儿,按其出生体重分为A(2~2.5 kg)、B(1.5~<2 kg)和C(<1.5 kg)3组,分别比较24个月内体重和身长的生长速率。结果 422名足月小样儿体重和身长追赶成功率男女比较差异均无统计学意义(P>0.05)。不同组别儿童在出生后前两个月体重和身长增长差异均无统计学意义(P>0.05)。在4、6、9和12月龄身长增长均为C>B>A,12月龄之后不同组别的身长增长差异无统计学意义(P>0.05)。在4、6和9月龄体重增长均为C>B>A,在9月龄之后不同组别的体重增长差异无统计学意义(P>0.05)。结论低出生体重儿的生长速率有很大潜力,但仅在12月龄前,因此要做好12月龄之前的营养保健。
Objective To understand the status quo of length and weight catch-up of full-term children born within 24 months of birth. Methods The full-term infants born in Ningbo from October 1, 2011 to January 1, 2014 were divided into A (2 ~ 2.5 kg), B (1.5 ~ <2 kg) and C kg) 3 groups, respectively, compared to 24 months weight and length growth rate. Results There were no significant differences in the success rates of body weight and length of catch in 422 full-term children (P> 0.05). There was no significant difference in body weight and length growth among children in different groups in the first two months after birth (P> 0.05). At 4, 6, 9 and 12 months of age, the growth was C> B> A. There was no significant difference in the growth of different groups after 12 months of age (P> 0.05). At 4, 6, and 9 months of age, the body weight gain was C> B> A. There was no significant difference in body weight gain between different groups after 9 months of age (P> 0.05). Conclusions There is great potential for growth rates in low birth weight infants, but only before 12 months of age and therefore should be well nourished before 12 months of age.