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目的研究正常分娩新生儿３种变量共３种二维对应关系，即孕母年龄与新生儿体重、孕母年龄与胎位、胎位与体重间的关系，并以几何坐标图表达。方法福州地区一家大型综合性医院１４年的出生登记资料１２７５５例新生儿中，选择单胎活产、无并发症、非早产、非手术产者８４６３例新生儿资料，用ＳＰＳＳｆｏｒＷｉｎｄｏｗｓ（Ｖ７．５）中的ＡＮＡＣＯＲ命令进行统计分析与绘图。结果发现：（１）＜２１岁的孕母（低龄）倾向于出生低体重儿，２２～２５岁与２６～２９岁孕母（常龄）常出生正常体重儿，≥３０岁（高龄）孕母倾向于出生巨大儿；（２）低龄孕母常怀非常见胎位（ＬＲ＊），常龄孕母多为枕左位（ＬＯ＊），高龄孕母常为枕右位（ＲＯ＊）；（３）头位婴儿（ＬＯ＊与ＲＯ＊）者多为正常体重儿，ＬＲ＊者常为低体重儿。结论（１）对应分析法能用二维坐标图形象地分析出２个变量其不同分类间的联系，而一般的交叉表常难以表达这种效果；（２）孕母年龄、新生儿位重及所怀胎体间有一定关系，提示按法定婚龄、不早婚也不太迟结婚，有利于怀正常胎位、出生正常健康的新生儿。
Objective To study the relationship between three kinds of variables of three kinds of newborn infants in normal delivery, that is, the relationship between pregnant mothers ’age, newborn’s weight, pregnant mothers’ age and fetal position, fetal position and body weight, and expressed in geometric coordinates. Methods A total of 12,655 newborns from a large general hospital in Fuzhou district were enrolled in this study. A total of 8463 newborn infants with single birth and non-complication, non-preterm and non-surgical births were selected. SPSS for Windows (V7.5) ANACOR command in the statistical analysis and drawing. The results showed that: (1) pregnant mothers (younger age) less than 21 years old tended to be born with low birth weight, 22-25 years old and 26-29 year old mothers (normal age) were often born with normal weight, older than 30 years old (2) Low pregnant women usually have unusual fetal position (LR *), most of the pregnant women usually have LO *, and older pregnant women usually have occipital right (RO *). (3) The first-born infants (LO * and RO *) are mostly normal-weight infants, and LR * are often low birth weight infants. Conclusions (1) The corresponding analysis method can use two-dimensional coordinate graph to visually analyze the relationship between the two variables in different categories, while the common crosstabs are often difficult to express this effect; (2) The age of pregnant women, the weight of newborns And pregnant with a certain relationship between the body, suggesting that the legal marriage age, not too early marriage is not too late to marry, is conducive to pregnant with normal fetal position, the birth of a normal and healthy newborn.