[Demographic impact of cesarean section]. / Repercusión demográfica de la operación cesárea.

BACKGROUND: in the vital statistics the cesarean section is a cause that makes reference to births and deaths. OBJECTIVE: to analyze the frequency of the cesarean section, the changes brought about in the rates of maternal, perinatal mortality and of natality, and their relation with reliable contraceptive methods. PATIENTS AND METHOD: retrospective study realized with the dices of patients of the Coordination of Reproductive Health of the Mexican Institute of the Social Insurance (IMSS) of the state of Aguascalientes (Mexico). The births were registered majors of 20 weeks of gestation, the maternal and perinatal deaths from 1990 to 2007 in the hospitals of the IMSS in Aguascalientes. The rate of cesarean calculated by means of the registry of the number of the same realized per year and they were divided between the total of vaginal and abdominal births, and the result multiplied percent. RESULTS: 201,563 obstetrical events were registered, of which 145,106 corresponded to vaginal childbirths and 56,457 abdominal ones. With these data a global rate of cesarean section of 28% was obtained, with 201,182 new born alive ones and 2,618 perinatal ones. The acceptance of the tubary bilateral occlusion maintained a constant increase during the period of study, like the intrauterine device. The acceptance from the bilateral occlusion was completely different tubary during the cesarean one, in comparison with the childbirth. CONCLUSION: the long term results show positive influence in the reduction of the rate of natality.

[Influence of Caesarean section on familial planning]. / Influencia de la operación cesárea en la planificación familiar.

The Caesarean section is commonly related to the effects it produces in maternal and perinatal morbidity and mortality; however, little has been studied about the influence that C-Section exerts in familiar planning. This cross-sectional study analyzes the relationship between the rate of Caesarean section during 19 years and the rates of natality, of maternal mortality, and perinatal mortality, as well as the accepted contraceptive methods during such surgical procedure.

[Socio-demographic impact of 15 years of family planning]. / Impacto sociodemográfico de 15 años de planificación familiar.

Familiar planning is an important branch of the preventive medicine that can have a great impact on the health of the humanity. The present study is an evaluation by a cross section of the effects obtained by the program of familiar planning during a period of 15 years in the Aguascalientes Delegation of the Mexican Institute of the Social Security, establishing therefore a diagnosis and identifying elements that can contribute in the suitable planning of strategies to improve the quality of the attention and to respond to social and health necessities of the population.