Totally implantable vascular access devices in cystic fibrosis: a four-year experience with fifty-eight patients.
Totally implantable vascular access devices in cystic fibrosis: a four-year experience with fifty-eight patients.
复制标题
囊性纤维化的完全植入式血管通路装置：58 名患者的四年经验。
DOI：
10.1016/s0022-3476(05)82450-3
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发表时间：
1990
期刊：
影响因子：
--
通讯作者：
Doershuk,CF
中科院分区：
文献类型：
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作者：
Morris,JB;Occhionero,ME;Gauderer,MW;Stern,RC;Doershuk,CF
本评价的结果表明，在未来的声反射计研究中，不考虑年龄对患者进行分组可能是不合适的。早期研究1-7中对婴儿、幼儿、儿童和青少年数据的分组可能有助于解释为什么该技术的准确性在各种人群样本中的范围非常广泛。显然，如果年龄不被视为一个重要因素，小规模的研究人群可能会非常不同。这种考虑也可能有助于解释为什么有些作者认为反射率为6是一个合理的截止点，而其他人则建议将反射率值定为4或5以区分正常耳朵和异常耳朵。这里提供的数据表明，患者年龄是一个重要的统计学问题，在决定哪个值的声反射率是被接受的指示异常
DISCUSSIONThe results of this evaluation suggest that it may not be appropriate to group patients without regard to age in future studies of acoustic reflectometry. The grouping of data from infants, toddlers, children, and adolescents in earlier studies 1-7 may help to explain why the accuracy of this technology has been reported to range very widely in various population samples. Obviously, small study populations may be very disparate if age is not regarded as an important factor. This consideration might also help explain why some authors have concluded that a reflectivity of 6 is a reasonable cutoff point and others have recommended a value of 4 or 5 to distinguish normal from abnormal ears. The data presented here suggest that patient age is a statistically important issue in deciding which value of acoustic reflectivity is to be accepted as indicative of an abnormal