ESTIMATING THE TERRITORY OF A PRIMARY CARE CENTER: GEOREFERENCING USERS.

Introduction: Defining the area of influence of a health center primary care, locating geographically users who attend it, is essential for planning health-oriented diagnosis aimed at prevention, promotion and protection tasks health of this population. It allows allocating resources equitably and efficiently. Objective: Delimitation of the area of influence of a health center primary care for georeferencing users. Specific objectives: Creating a georeferencing statistical system. Using this system in pilot amongst the Municipal Polyclinic Los Angeles, Montevideo, Uruguay area. Demonstration of the validity using statistical methods. Replicability and demonstration of cost benefit. Methodology: Total population 5000 people. Representative sample of 10% for calculating the area of influence, geographically delimiting the area where 95% of the population lives. The statistical method used saturation by superimposing layers of geo-referenced users using free software QGIS being innovative method of saturation for such tasks. Results and conclusions: It is determined with high fidelity the territory of influence. Three neighborhoods have a higher density of users. georeferencing statistical system created and used, allows a small sample, estimating the geographical distribution of users and this innovative system in the field, in our country.