[Motives for abandoning the healthcare process for precancerous lesions of the uterine cervix].

Objective: To determine factors associated with medical care abandon of women with CIN.

Material And Methods: A nested case-control study in a cohort was done. Patients referred to clinical Dysplasia of Gyneco-Obstetrician Services in third level Hospitals were considered.

[Maternal mortality at the Mexican Institute of Social Security (IMSS). Initial results from a reduction intervention strategy].

Objective: To analyze the preliminary results of a medical manager intervention to improve the quality of medical care during pregnancy, delivery and puerperium, on the maternal mortality rates in population covered by the Mexican Institute of Social Security (IMSS).

Material And Methods: We selected the 14 administrative delegations of IMSS that showed the highest rates and absolute numbers of maternal deaths in the years 1999 to 2001. Within this group, the manager medical staff developed activities for medical training of family physicians and gynecologists, to improve medical resources, to achieve a better coordination among medical services, to adequate reference of obstetrical complications to higher-level hospitals, and for monitoring of maternal mortality committees operation.