For my paper on the importance of the accurate assessment of cervical
dilation (opening of the cervix) during labor, I am looking for some
statistics to support my research. A report by CDC says that both the
number of premature labors and cesarian sections and labor inductions
rose in 2002 compared to previous years. Specifically, I need to know
what percentage of these cesarian sections and labor inductions (using
medications to artificially start or induce labor) are due to abnormal
labor, which includes:

·	dystocia (abnormalities of the woman?s uterus or pelvis, of the fetus), 
·	cephalopelvic disproportion (the disparity between the size of the
maternal pelvis and the fetal head that prevents dilation of the
cervix and/or descent of the baby's head),
·	protraction and arrest disorders (insufficient or complete lack of
cervical dilation).

I am most interested in seeing the percentage breakdown, i.e. what
percentage is due to dystocia, to cephalopelvic disproportion, and to
protraction and arrest disorders. In addition, I would like to know
the number of premature births in the US and what percentage of
premature births is due to early cervical dilation. I prefer the most
recent year possible, but need the incidence for any one year from
1998 or later, if that is possible. Any information and statistics on
the problems and risks associated with unrecognized cervical dilation
(both premature and delayed) and the importance of accurately
assessing its progress during labor will be very helpful in piecing
this information together. Please let me know if you have any
questions and I?ll be happy to answer. Many thanks in advance.

Lucy