Reliability of the Bishop score before labour induction at term.
作者信息
Faltin-Traub Ellen F, Boulvain Michel, Faltin Daniel L, Extermann Philippe, Irion Olivier
机构信息
Department of Obstetrics and Gynaecology, University Hospital Geneva, Geneva 14 1211, Switzerland.
出版信息
Eur J Obstet Gynecol Reprod Biol. 2004 Feb 10;112(2):178-81. doi: 10.1016/s0301-2115(03)00336-1.
OBJECTIVE
To evaluate the agreement within three pairs of observers regarding the Bishop score and an informal global evaluation of the cervix (favourable/unfavourable).
STUDY DESIGN
We conducted a reliability study of the Bishop score. Three pairs of examiners (A-B, A-C and D-E) performed independently a cervical examination in 156 term pregnant women admitted for labour induction. We calculated the proportion of agreement and the Kappa coefficient.
RESULTS
Perfect agreement between two observers for the Bishop score was found in 44 women (28%). Accepting a difference of one point between the observers, agreement increased to 66%. Weighted Kappa coefficients for the Bishop score were 69, 54 and 35% for each pair of observers. Kappa coefficients for the informal evaluation of the cervix were 64, 45 and 46, respectively.
CONCLUSION
Agreement between two observers evaluating the cervix is fair to substantial. An informal evaluation of the cervix is as reliable as the Bishop score.
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