目的了解同卵双胎儿与同性别异卵双胎儿超声骨密度值(speed of sound,SOS值)同一性的差异,为人骨密度与基因的相关性提供依据。方法将2010-2013年来我科做正常体检保健的双胎儿按同卵双胎儿、同性别异卵双胎儿分为两组,同卵双胎儿59对,...目的了解同卵双胎儿与同性别异卵双胎儿超声骨密度值(speed of sound,SOS值)同一性的差异,为人骨密度与基因的相关性提供依据。方法将2010-2013年来我科做正常体检保健的双胎儿按同卵双胎儿、同性别异卵双胎儿分为两组,同卵双胎儿59对,同性别异卵双胎儿78对。分别对2组小儿做骨密度检测,并对2组间SOS差值的差异进行统计学分析。结果同卵双胎儿的SOS值差较同性别异卵双胎儿SOS值差小(P=0.0029)。同异卵两组SOS差值散点图差异的比较显示,同性别异卵组差值分散度明显大于同卵组(P=0.0026)。结论同卵双胎儿的骨密度值更接近,而同性别异卵双胎儿间骨密度值差异较大,提示人的骨密度值与基因相关。展开更多
该文就双胎儿自身的心理特性或从心理学上看问题略述双胎儿心理如下。1 围产期异常的影响多胎妊娠容易伴有羊水过多,妊娠高血压综合征、前置胎盘、脐带脱垂、低血糖等多种围产期异常。因此,双胎多为早产儿或低体重儿。根据Record and Mc...该文就双胎儿自身的心理特性或从心理学上看问题略述双胎儿心理如下。1 围产期异常的影响多胎妊娠容易伴有羊水过多,妊娠高血压综合征、前置胎盘、脐带脱垂、低血糖等多种围产期异常。因此,双胎多为早产儿或低体重儿。根据Record and Mckeown 等报道。展开更多
Objective: To establish the nature and extent of difficulties in parenting and child development in families with twins conceived by assisted reproduction. Design: Comparisons were carried out between a representative...Objective: To establish the nature and extent of difficulties in parenting and child development in families with twins conceived by assisted reproduction. Design: Comparisons were carried out between a representative sample of 344 families with 2-to 5-year-old twins conceived by IVF/intracytoplasmic sperm injection (ICSI) and a matched comparison group of 344 families with singletons from IVF/ICSI. One twin was randomly selected for data analysis to avoid the bias associated with nonindependence of measures. Setting: A general population sample of IVF/ICSI families. Patient(s): Mothers and children. Intervention(s): Mothers completed a questionnaire booklet. Main Outcome Measure(s): Standardized measures of the mother’s psychological well-being (parenting stress, depression, and quality of marriage) and standardized measures of the child’s psychological development (emotional/behavioral problems and cognitive development).Result(s):Mothers of twins showed significantly higher levels of parenting stress and depression than mothers of singletons and were significantly more likely to find parenting difficult and significantly less likely to obtain pleasure from their child. Regarding the children, there was no difference in the level of emotional or behavioral problems between twins and singletons. However, twins showed significantly lower levels of cognitive functioning. Conclusion(s): Greater difficulties in parenting and child development were experienced by IVF/ICSI families with twins than by IVF/ICSI families with singletons.展开更多
文摘目的了解同卵双胎儿与同性别异卵双胎儿超声骨密度值(speed of sound,SOS值)同一性的差异,为人骨密度与基因的相关性提供依据。方法将2010-2013年来我科做正常体检保健的双胎儿按同卵双胎儿、同性别异卵双胎儿分为两组,同卵双胎儿59对,同性别异卵双胎儿78对。分别对2组小儿做骨密度检测,并对2组间SOS差值的差异进行统计学分析。结果同卵双胎儿的SOS值差较同性别异卵双胎儿SOS值差小(P=0.0029)。同异卵两组SOS差值散点图差异的比较显示,同性别异卵组差值分散度明显大于同卵组(P=0.0026)。结论同卵双胎儿的骨密度值更接近,而同性别异卵双胎儿间骨密度值差异较大,提示人的骨密度值与基因相关。
文摘Objective: To establish the nature and extent of difficulties in parenting and child development in families with twins conceived by assisted reproduction. Design: Comparisons were carried out between a representative sample of 344 families with 2-to 5-year-old twins conceived by IVF/intracytoplasmic sperm injection (ICSI) and a matched comparison group of 344 families with singletons from IVF/ICSI. One twin was randomly selected for data analysis to avoid the bias associated with nonindependence of measures. Setting: A general population sample of IVF/ICSI families. Patient(s): Mothers and children. Intervention(s): Mothers completed a questionnaire booklet. Main Outcome Measure(s): Standardized measures of the mother’s psychological well-being (parenting stress, depression, and quality of marriage) and standardized measures of the child’s psychological development (emotional/behavioral problems and cognitive development).Result(s):Mothers of twins showed significantly higher levels of parenting stress and depression than mothers of singletons and were significantly more likely to find parenting difficult and significantly less likely to obtain pleasure from their child. Regarding the children, there was no difference in the level of emotional or behavioral problems between twins and singletons. However, twins showed significantly lower levels of cognitive functioning. Conclusion(s): Greater difficulties in parenting and child development were experienced by IVF/ICSI families with twins than by IVF/ICSI families with singletons.