A new objective scoring system for the prediction of successful induction of labour.

A prospective study was done in 311 women undergoing induction of labour for the formulation of a new score, which will be more objective than the conventional Bishop's score. Pre-induction cervical assessment was done by the transvaginal sonographic parameters followed by the digital examination. Labour induction was successful in 79.09%. A new score was formulated using the parameters having independent association and weighting of individual components was given according to its regression coefficients. A new score with a maximum value of 13 was proposed. The best cut-off point for the new score in receiver operating characteristics curve was six with a sensitivity of 95.5% and specificity of 84.6%. The new score was found to have a better area under the curve than the conventional score.