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目的 :探讨脐带缠绕发生率的变化趋势。方法 :收集在广西医科大学第一附属医院产科 1982～ 1996年出生的新生儿出生史 ,计算各年度脐带缠绕发生率 ,采用时间序列统计分析方法 ,对连续十五年的脐带缠绕发生率进行动态分析 ,并比较各年度脐带平均长度。结果 :经游程检验 ,1982至 1996年的脐带缠绕发生率存在升降趋势 :1990年前表现平稳 ,1990后急剧上升 ;各年度脐带平均长度无统计学差异 ( P >0 .0 5 )。结论 :1982年至 1996年脐带缠绕发生率呈现上升趋势
Objective: To investigate the changing trend of umbilical cord entanglement. Methods: The birth history of newborns born in the obstetrics department of the First Affiliated Hospital of Guangxi Medical University from 1982 to 1996 was collected. The incidence of umbilical cord entanglement in each year was calculated. The incidence rate of umbilical cord entanglement for 15 consecutive years was analyzed by time series statistical analysis Analyze, and compare the average length of the umbilical cord each year. Results: The results of run-length test showed that the incidence of umbilical cord entanglement between 1982 and 1996 tended to increase and decrease: the performance before 1990 was stable, and then increased sharply after 1990; the average length of umbilical cord in each year was no significant difference (P> 0.05). Conclusion: The incidence of umbilical cord entanglement increased from 1982 to 1996