-VISIT OUR OTHER FORUMS- OB-GYN-L Ultrasound Ultrasound History Fibroid Forum Physicians-in-Training Tech Talk OBSTET-L (portuguese) OBGIN-L (spanish) Nursing

Re: ACOG Primary Cesarean rate From: Ken Turkowski (turk@apple.com) Mon Aug 16 16:21:15 1999 Messages sorted by: [ date ][ thread ][ subject ][ author ] Next message: Braun, R. Daniel: "Re: amnio-infusion" Previous message: DoctorJoe@aol.com: "Re: Herpes in Pregnancy" Maybe in reply to: Juanell Maggiora: "ACOG Primary Cesarean rate" On 8/15/99 1:50 AM, Mary Hyde <MHyde@acog.org> said: >Cesarean Section Rates in the US > * ** *** >Year Total Number Total Rate Primary Rate Repeat Rate VBAC Rate >1997 799,033 20.8 14.6 37.1 27.4 >1996 797,119 20.7 14.6 36.8 28.3 >1995 806,722 20.8 14.7 36.8 27.5 >1994 830,517 21.2 14.9 37.3 26.3 >1993 861,987 21.8 15.3 37.4 24.3 >1992 888,622 22.3 15.6 37.6 22.6 >1991 905,077 22.6 15.9 37.1 21.3 >1990 914,096 22.7 16.0 37.1 19.9 >1989 826,955 22.8 16.1 36.8 18.9 >1985 854,000 22.7 16.3 34.6 6.6 >1980 596,000 16.5 12.1 29.9 3.4 >1975 327,000 10.4 7.8 27.1 2.0 >1970 205,000 5.5 4.2 25.2 2.2 > >*Number of 1st Cesarean Sections per 100 deliveries to women who did not >have previous Cesarean Section >** Proportion of all Cesarean Sections that are repeat cesareans >***VBAC rate/ per 100=number who had a Cesarean Section in the past and now >had a successful vaginal delivery. Can someone please explain to me why the repeat cesarean rate has remained essentially constant since 1989 or so, yet the VBAC rate goes up by 9 percentage points? Why are they in different units (repeat/all c-sects, VBAC/all-scarred). Am I justified in saying that, 100 minus the VBAC rate is the rate of prior-C patients who deliver again by C-section, or is there another category such as "unsuccessful births"? Here is the table I get from subratcting the VBAC rate from 100: VBAC Rate Repeat C rate 27.4 72.6 28.3 71.7 27.5 72.5 26.3 73.7 24.3 75.7 22.6 77.4 21.3 78.7 19.9 80.1 18.9 81.1 6.6 93.4 3.4 96.6 2 98 2.2 97.8 What is the criterion for a "successful" VBAC? Does this include only live births or still births as well (as long as they are delivered vaginally)? Is a birth considered "successful" if it is accompanied by sepsis, anoxia, and other serious morbidities? Just what do these statictics really mean??? Is there information about the ratio of successful VBACs versus attempted VBACs? Healthy versus atempted VBACs? How about healthy cesarean deliveriess versus atempted cesareans? Inquiring minds want to know... :-) _____________________________________________________________ Ken Turkowski, research scientist -- _____________________________________________________________ Maintainer of annotated VBAC bibliography, updated quarterly: <http://www.worldserver.com/turk/birthing/rrvbac.html> Next message: Braun, R. Daniel: "Re: amnio-infusion" Previous message: DoctorJoe@aol.com: "Re: Herpes in Pregnancy" Maybe in reply to: Juanell Maggiora: "ACOG Primary Cesarean rate"

Return to

Mail a New Message to the Forum: ob-gyn-l@obgyn.net Forum Administrator: geffrey.klein@obgyn.net Report Technical Problems: webmaster@obgyn.net Last Updated: Wed Dec 2 05:29:03 2009

The American Medical Association is no longer designating CME hours for AMA Category II CME credit. However, physicians themselves may self designate learning activities as Category II CME credit hours if they feel it is of sufficient educational merit and meets the formal definitions of continuing medical education. OBGYN.net believes these interaction in this forum meets these criteria. For further information see the AMA web site.