[Health status of the elderly in primary health care practices using an integral geriatric assessment].

Objective: To determine the health status of patients 60 years of age or over in Primary Health Care practices using an integral geriatric assessment.

Design: Descriptive cross-sectional study.

Location: Five primary care units, Instituto Mexicano del Seguro Social; México.

[Natural history of breast cancer diagnostic procedures].

Objective: To build a model that explains the natural history of breast cancer diagnostic procedures.

Methods: Descriptive cross-sectional study of 245 women between 40 and 69 years of age, selected by simple random sampling, who underwent a mammography and met the requirements of the breast cancer diagnostic procedure. Diagnosis was made by biopsy.