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目的探讨母妊高症、羊水过少、宫内发育迟缓(IUGR)的初诊孕周等围生因素与小于胎龄儿(SGA)的临床分型的相关性。方法对在我院出生的317例SGA的临床资料进行回顾性分析,根据《中华儿科杂志》SGA的定义及分型标准进行分型,并用统计学方法分析研究母妊高症、羊水过少、IUGR初诊孕周与SGA不同分型结果的相关性。结果 317例SGA中按重量指数或按身长/头围比值分为匀称型占90.16%,非匀称型占9.83%,两种分型方法结果的符合率80.8%。根据SGA定义分型,则匀称型占44.84%,非匀称型占55.15%,与身长/头围比值和重量指数分型的符合率分别为50.8%和49.8%。母妊高症、羊水减少、IUGR初诊孕周与临床分型结果的相关性差异无统计学意义。(P>0.05)结论母妊高症、羊水减少及IUGR初诊孕周不影响SGA的临床分型;身长与头围比例、重量比值分型方式与SGA中分型方式不尽相符。
Objective To investigate the correlation between perinatal factors such as gestational age, gestational hypertension, oligohydramnios, intrauterine growth retardation (IUGR) and clinical classification of small gestational age (SGA). Methods A retrospective analysis was performed on the clinical data of 317 SGA patients born in our hospital. According to the definition and classification criteria of SGA in Chinese Journal of Pediatrics, statistical methods were used to analyze the relationship between mother’s pregnancy-induced hypertension, oligohydramnios, Correlation between IUGR initial gestational age and different SGA typing results. Results 317 cases of SGA by weight index or according to length / head circumference ratio is divided into symmetrical type accounted for 90.16%, 9.83% for non-uniform type, the two classification results of the coincidence rate of 80.8%. According to the definition of SGA, 44.84% of symmetry and 55.15% of non-symmetry were classified according to SGA. The coincidence rates with the ratio of length / head circumference and weight index were 50.8% and 49.8% respectively. Pregnancy-induced hypertension, amniotic fluid reduction, IUGR initial gestational age and clinical classification results showed no significant difference. (P> 0.05) .Conclusion Pregnancy-induced hypertension, amniotic fluid loss and IUGR initial gestational age do not affect the clinical classification of SGA. The ratio of body length to head circumference and weight ratio are not consistent with the SGA classification.