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  • Title: [Birth readiness of the uterine cervix. II. Cervix readiness score and its problems because of the variability of individual criteria].
    Author: Lamberti G.
    Journal: Z Geburtshilfe Perinatol; 1982 Oct; 186(5):235-9. PubMed ID: 6891151.
    Abstract:
    Cervical ripeness was scored in nulliparous and parous women not in labor at term according to Bishop's pelvic score. The frequency distributions of the scores for the single criteria as well as of the total score reveal the problems of all those scoring systems caused by the grouping process as sequelae of the choice of width of the classes as well as of their limits. E.g. for cervical dilatation in none case 2 or 3 points had been reached and similar findings had to be stated concerning station of the presenting part. An other point of discussion erases from the results of the analysis for linear correlation of the single criteria between each other and between the single criteria and the total score. The total score is mostly influenced by the consistency (r = 0,81 in nulliparous and parous women) and the effacement (r = 0,80 and r = 0,81) of the cervix, whereas for dilatation and station lower correlation coefficients were found. In contrast, when labor had started spontaneously, even if the status of cervix was not advanced, a significant change in the correlative influence of the total score by the single criteria could be stated with high correlation coefficients for dilatation and station and lower one's for consistency and effacement.
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