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目的了解不同出生体重儿6个月龄时体格发育水平和营养状况,为儿童保健工作提供依据。方法在儿童6个月龄时,测量身长、体重和血红蛋白,按照年龄别体重、年龄别身长、身长别体重3项参数评价发育等级,并进行肥胖的筛查,评价贫血检出率。结果低出生体重儿6个月龄体格发育指标3项参数评价为中高、中上和上等的比例均低于出生体重正常儿和巨大儿,差异有统计学显著意义。低出生体重儿6个月龄体重发育等级在中低以上的比例达90.7%,肥胖检出率为3.9%,巨大儿6个月龄体重按年龄评价为上的比例占40.5%。不同出生体重儿童6个月龄的贫血、肥胖检出率差异无统计学意义。结论低出生体重儿追赶生长关键期在6个月内,且生后早期容易发生脂肪的过度聚集。巨大儿生后早期的生长有向均线回归的趋势。
Objective To understand the physical development status and nutritional status of 6-month-old infants with different birth weight, and provide the basis for child health care work. Methods The body length, body weight and hemoglobin were measured at 6 months of age. The developmental grade was evaluated according to age, weight, age and height and body weight. The detection of obesity was performed to evaluate the detection rate of anemia. Results The parameters of physical development of 6-month-old infants with low birth weight were evaluated as middle-high, middle-upper-middle and upper-class. The differences were statistically significant. The proportion of low birth weight infants weighing at least 6 months and above was 90.7%, the rate of obesity was 3.9%, and the weight of 6 months old children was 40.5%. There was no significant difference in the detection rate of anemia and obesity among children of different birth weight at 6 months. Conclusions The low birth weight infant catch up with the growth critical period in 6 months, and early after birth prone to excessive accumulation of fat. The growth of the huge children after the early trend of return to the moving average.