Tuffnell D J, Bryce F, Johnson N, Lilford R J
Department of Obstetrics and Gynaecology, St James's University Hospital, Leeds.
Lancet. 1989 Nov 4;2(8671):1089-90. doi: 10.1016/s0140-6736(89)91094-5.
A carefully designed set of simulators showing cervical effacement and dilatation was used to assess the error within and between observers in a group of 36 midwives and 24 obstetricians. No observer was correct in every case. There was no significant difference between the obstetricians and the midwives in assessment of effacement or overall assessment of dilatation. However, midwives were significantly more likely than obstetricians to assess dilatation inaccurately by more than 1 cm. Inaccuracy was greatest in the simulators 5-7 cm dilated. These findings have implications for labour management and teaching.
使用一组精心设计的模拟装置来展示宫颈管消退和扩张情况，以评估36名助产士和24名产科医生群体中观察者内部以及观察者之间的误差。没有一名观察者在每种情况下都是正确的。产科医生和助产士在评估宫颈管消退或扩张的总体评估方面没有显著差异。然而，助产士比产科医生更有可能将扩张评估误差超过1厘米。在扩张5 - 7厘米的模拟装置中，误差最大。这些发现对产程管理和教学具有启示意义。
