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1953年以来的国内、外部分儿科资料和我国高等医药院校试用教材《儿科学》,对一岁以内小儿体重计算的公式均为:出生后1～6个月的体重=出生时的体重(克)+月龄×600,生后7～12个月的体重=出生时体重(克)+月龄×500。按照上述公式计算,生后第7个月的体重比第6个月还少100克,而第8个月比第6个月只增长了400克.此公式不能如实反映小儿体重增长的客观规律,而且又自相矛盾为使计算公式科学地反映小儿体重增长的客观规律,为医学实践服务,现根据国内统计资料,结合临床实践和数学基本原理,对一岁以内小儿体重的计算,提出如下甲、乙两个公式,供参考.公式甲:1～6个月体重(公斤)=出生时体重+月龄×0.7.7～12个月体重(公斤)=6个月体重+(月龄-6)×0.4.即:1～6个月体重
Since 1953, domestic and foreign pediatrics information and pedagogy “Pediatrics”, the calculation formula for the weight of children within one year old are: 1 to 6 months after birth weight = body weight at birth ( G) + month old × 600, 7 ~ 12 months after birth weight = weight at birth (g) + month old × 500. According to the above formula, the weight of the seventh month after birth was less than 100 grams in the sixth month, while the eighth month was only increased by 400 grams compared with the sixth month. This formula can not accurately reflect the objective law of weight gain in infants , But also self-contradictory in order to make scientific formula to reflect the objective law of children’s weight growth scientifically and serve the medical practice. According to the domestic statistical data, combined with clinical practice and mathematical basic principles, the calculation of the weight of a child within one year old is as follows Formula A: 1 ~ 6 months Weight (kg) = weight at birth + months × 0.7.7 ~ 12 months Weight (kg) = 6 months Weight + (months old -6) × 0.4. That is: 1 to 6 months of weight