论文部分内容阅读
目的研究7～18岁儿童少年的生长发育趋势。方法采用随机整群分层抽样的方法,于1963、1973、1981、1985、2003年对沂蒙山区7～18岁城乡儿童少年的身高、体重、胸围、坐高准确测量。结果 40年来,城市男女儿童少年平均每10年的身高分别增加3.81和3.16 cm,体重分别增加3.30和2.32 kg;乡村男女儿童少年平均每10年的身高分别增加3.61和3.12 cm,体重分别增加2.67和2.24 kg。儿童少年的生长发育表现出明显的性别差异和城乡差异。男、女儿童少年各项形态指标的两次交叉年龄提前二三年;突增高峰年龄:城市男女儿童少年提前二三年,乡村男女儿童少年提前一二年。结论该地区4项形态指标发育水平有逐年提高的趋势,为今后政府部门的决策提供了可靠依据。
Objective To study the growth and development of juveniles aged 7-18 years. Methods Random stratified sampling was used to measure the height, weight, chest circumference and sitting height of children and adolescents aged 7-18 in Yimeng Mountain in 1963, 1973, 1981, 1985 and 2003 respectively. Results For 40 years, the average age of boys, girls and boys in cities increased by 3.81 cm and 3.16 cm, respectively, and the body weights increased by 3.30 and 2.32 kg, respectively. The average age of boys and girls in rural areas increased by 3.61 cm and 3.12 cm respectively, and the body weight increased by 2.67 And 2.24 kg. Children’s growth and development showed significant gender differences and urban-rural differences. The age of two crosses of various forms of male and female children and adolescents two or three years ahead of schedule; the peak age of sudden increase: urban boys, girls and children, two to three years in advance, and boys, boys, and adolescents in rural areas one or two years in advance. Conclusion The development of four morphological indicators in this area has been increasing year by year, which provides a reliable basis for the future government departments’ decision-making.